Jeep's impressive Grand Cherokee EcoDiesel, the model that just drove away with Green Car Journal's 2015 Green SUV of the Year award at the 2015 Washington Auto Show, is one SUV that's sure easy to like. At least that's what we kept thinking during a recent 500 mile trip in a Grand Cherokee Limited test vehicle.
While not a small vehicle by any means, the Grand Cherokee is easy to maneuver and, for a 4x4, offers a surprisingly accommodating ride. Plus, the EcoDiesel variant is very efficient as far as full-size SUVs go, delivering fuel economy that tracked well with its 22 mpg city/30 mpg highway EPA ratings. Long-time SUV drivers will surely share that this is amazingly efficient for a full-size, full capability Sport Utility Vehicle.
Those considering a Jeep Grand Cherokee have a mind-boggling number of choices in models, powertrains, and option packages, with the base model starting at $30,000 and uplevel trim packages ranging up to $64,500. Our Grand Cherokee EcoDiesel test vehicle offered a base price of $36,395 but landed closer to $50,000 with the added Luxury Group, Adventure Group, and Unconnect packages, the latter offering desired electronics like premium navigation, HD radio, and SiriusXM Traffic.
On-board electronics is a big deal in most models these days and the Grand Cherokee is no exception. Electronics is well-looked-after with standard fare like remote start, 7-inch multi-view display, rear back-up camera and back-up assist, ready alert braking, tire pressure monitoring, and integrated voice command with Bluetooth.
The Luxury Group package in our test vehicle upgrades the display to an 8.4-inch touch screen and also adds features like self-leveling Bi-Xenon HID headlamps and automatic high-beam headlight control, rain-sensitive windshield wipers, and Napa leather ventilated seats.
While buyers have other V-6 and V-8 gasoline engine choices, those wanting the best fuel economy combined with maximum towing capacity will naturally opt for the 3.0-liter EcoDiesel V-6. Rated at 240 horsepower and 420 lb-ft torque, this powerhouse-of-an-engine is sufficient to tow 7,400 pounds and delivers welcome performance.
In addition to the Grand Cherokee Limited we drove, the 50-state diesel is also available in Overland and Summit versions. With full-time four-wheel-drive like our test vehicle, the model’s EPA numbers are 22 mpg city/30 mpg highway/25 mpg combined fuel economy – high numbers for a large vehicle with this level of functionality. Another positive is the EcoDiesel’s range of up to 730 miles between fill-ups. We completed our considerable road trip without fueling up, a welcome experience.
The Jeep Grand Cherokee’s diesel engine is supplied by Italy's VM Motori and was developed in collaboration with Fiat Powertrain Technologies. While VM Motori has had many owners – Detroit Diesel, DaimlerChrysler, Penske, etc. – it is now a 50-50 joint venture between GM and Fiat. Over the years, virtually every auto manufacturer has used VM Motori diesel engines at one time or another.
Fiat's MultiJet II common-rail injection, water-cooled exhaust-gas recirculation Selective Catalyst Reduction (SCR), and 16.5:1 compression ratio enable the 24-valve, dual-overhead-cam engine to meet stringent Tier II, Bin 5 and ULEV II emissions rules. It is designed to use Ultra Low Sulfur Diesel (ULSD) and is approved for B20 (20 percent biodiesel/80 percent petrodiesel). Other features include a water-cooled, variable-geometry turbocharger, 60-degree cylinder banks, chain-driven camshafts, and low-voltage ceramic glow plugs for quicker cold-weather starts.
There is an Eco Mode to maximize economy by controlling items like transmission shift schedule, idle speed, and interactive deceleration fuel shut off, the latter cutting fuel feed when coasting. Eco Mode is automatically engaged at startup. A button on the center stack can be used to disengage Eco Model when more sporty performance is desired. While engaged, Eco Mode directs the Jeep’s Quadra-Lift air suspension system to lower the vehicle at speeds above 55 mph, providing for better aerodynamic efficiency. On 4WD models in 4H, Eco Mode also alters the front-to-rear torque split to increase fuel economy.
The model’s Selec-SpeedControl feature, which includes both Hill Ascent Control and Hill Descent Control, assists when ascending steep grades. Hill Descent Control helps monitor throttle, speed, and braking when traveling down a hill, while Hill Start Assist keeps brakes applied after removing your foot from the brake, allowing time to accelerate without rollback.
The 4x4 version gets Quadra-Trac II that offers all-speed traction control. An electronic limited-slip differential transfers up to 100 percent torque to the wheels when needed to lend year-round traction on wet or dry surfaces. As is the case with 4WD vehicles, shifting into low-range provides rock-crawling prowess.
We returned from our journey impressed not only with this vehicle’s functionality in carrying people and cargo, but its ability to do so in comfort and style. Plus, of course, there’s the Grand Cherokee’s all-important efficiency and impressively long driving range between fill-ups.
Those who need a full-size SUV that can handle any mission with complete confidence, while doing so in ways that require far less fuel than one would reasonably expect, should consider placing the Grand Cherokee EcoDiesel on their short list. Its efficiency, capabilities, and general do-everything attitude earned it Green Car Journal's 2015 Green SUV of the Year for these, and many other, very good reasons.
Well, this should be no surprise. Reuters reports what we’ve suspected all along because there’s a long history of this happening: Low gasoline prices are negatively impacting the sale of alternative fuel vehicles including those running on natural gas and electricity.
Not surprisingly, with lower gasoline prices comes a decided uptick in purchases of larger and lower efficiency vehicles, especially SUVs. Beyond personal transportation, the commercial sector is also being hit hard because the cost differential involved in buying large natural gas trucks presently fails to pencil out well compared to conventionally powered models.
Is this a trend? Only short term, really. Green Car Journal editors have noted such occurrences over the past two decades and the trend has always ebbed and flowed with varying fuel prices, incentives, and other factors. While the long-term prospects for battery electric vehicles hinge on lower cost batteries in the future, hybrids and high efficiency conventional vehicles are here to stay.
Chevrolet’s all-new 2015 Colorado midsize pickup seeks to fill a potentially hot market replete with buyers interested in the functionality of a truck but requiring a bit smaller package for better maneuverability in urban areas. Starting at an MSRP of $20,120, the Colorado is available in four-door extended cab or crew cab models to fit varying needs, offering a standard six-foot pickup bed with a short five-foot bed also available on a short bed crew cab versions. Rear seat room is very tight in the extended cab and reasonably comfortable in the crew cab.
Power choices include two fuel efficient engines, a 2.5 liter four-cylinder and a 3.6 liter V-6. The four-cylinder is rated at 200 horsepower and 191 lb-ft of torque, with approximately 90 percent of the peak torque available from 2,000 rpm to 6,200 rpm. The V-6 engine is rated at 305 horsepower and 269 lb-ft of torque. Fuel economy is estimated at 18 city/26 highway mpg with the V-6 and bumps up to 20 city/27 highway mpg with the four-cylinder. A new clean diesel option is coming with the 2016 Colorado, which will be offering a new 2.8-liter Duramax engine featuring an expected 181 horsepower and a sizeable 369 lb-ft of torque coming on at a low 2,000 rpm. Fuel efficiency promises to be outstanding for a pickup.
Aluminum blocks and forged-steel crankshafts, along with dual-overhead camshafts with variable valve timing, direct injection, and jet-spray piston cooling are shared by both of the current gasoline engines. The Colorado's trailering rating is up to 7,000 pounds with the V-6 engine and heavy-duty towing package. All models come with a standard six-speed automatic transmission with auto grade braking and a tow/haul mode. Extended cab 2WD WT models equipped with the 2.5-liter engine are available with a six-speed manual transmission.
The Colorado features triple-sealed doors inlaid in the body sides for improved aerodynamic performance and a quieter interior. To help keep overall mass down, lightweight materials such as an aluminum hood are used. It also has active aero grille shutters, designed to enhance aerodynamics when closed. Electric power steering improves efficiency by eliminating the energy used by an engine-driven hydraulic pump.
With nearly the capacity and features of the full-size Chevrolet Silverado pickup, this mid-sized pickup offers not only better fuel economy, but enhanced maneuverability including a short turning radius of 41.3 feet, great on city streets or backing a trailer into a camping spot.
The Colorado may be a pickup, but it offers the advanced electronics so desired by consumers today. Safety is also top-of-mind with forward collision alert and lane departure warning plus a standard rear-vision camera.
The road to higher efficiency is an appealing one these days and driving a small car is one way to get there. While it’s true that not everyone is in the market for a small car, the appeal grows if small means efficient and highly functional but not constrained or boring.
This is the theme with Honda’s third-generation 2015 Honda Fit, which offers a more aerodynamic look and additional interior space while retaining the previous version's overall physical footprint. Honda designers have clearly gone the extra mile in not only offering a thoroughly modern small car, but innovating ways to bring greater interior functionality than should be expected in this size package.
Helping achieve this is the Fit's ‘Magic Seat’ rear seat setup that offers four modes for carrying passengers, cargo, or both. In the Utility Mode, it can carry 52 cubic feet of cargo. Fold down the right sides of the rear and front passenger seat in the Long Mode and you can carry items up to 7 feet, 9 inches in length. In the Tall Mode there’s nearly 4 feet of room available top to bottom. Remove the front head restraints, fold back the front seats, and you can relax, or even sleep, in the Refresh Mode.
Beyond this refreshing small car functionality, perhaps the Fit’s most important change is a new and more fuel-efficient powertrain. Its new direct-injected, 1.5-liter, four-cylinder Earth Dreams engine produces 130 horsepower, 13 more than the engine it replaces.
A six-speed manual transmission is standard, but most will be fitted with a continuously-variable transmission (CVT) that has shift paddles and a Sport mode that provides seven selectable ‘gears’ to increase the fun factor. This CVT comes with Eco Assist and an ECON button for more fuel efficient operation. All models also feature Honda's Eco Coaching function that prompts drivers to achieve maximum fuel economy.
With the 6-speed, the Fit achieves EPA estimated numbers of up to 33 mpg in the city and an impressive 41 mpg on the highway, achieving desirable efficiency with a gasoline engine that only comes with a hybrid in some other models. Not only do drivers save on gas, but also on purchase price since the 2015 Fit offers a base MSRP of just $15,525 that makes this model approachable for most new car buyers.
Safety has long been a hot topic in debates over increasing fuel efficiency, but this is less so today. In 2002, Senator Trent Lott warned of ‘purple people-eaters’ (read: silly-looking golf carts) taking over the market if CAFE standards were raised; Mr. Lott now drives a Mini Cooper. Effective occupant protections are proliferating, and U.S. vehicle fatalities continue to decline.
Manufacturers are improving fuel efficiency through a host of strategies that include reducing vehicle weight by removing unnecessary material and substituting lighter materials, which in turn permits downsizing of the engine and other components. Ford, for example, has indicated its intention to reduce the weight of its vehicles by 12 percent on average by 2020. As a rule of thumb, each 10 percent reduction in body weight can lower fuel consumption by 6 percent when component downsizing is taken into account. None of this means changing vehicle dimensions – there’s no need to sacrifice protective crush space to get a more fuel-efficient ride, especially when today’s CAFE standards require smaller vehicles to meet tighter fuel efficiency targets.
At this point, weight reduction is one of the least expensive approaches to saving fuel. Composites such as carbon fiber-reinforced polymers remain expensive for the time being, but lightweight steel, aluminum and other plastics are pressed into service in vehicle configurations that frequently yield net cost reductions. The need to retool and to master challenges such as joining dissimilar materials mean the transition to lighter vehicles is gradual. But there appear to be few obstacles to a long-term trend toward substantially lighter vehicles. The trend will be especially helpful to the adoption of electric vehicles, for which downweighting is critical due to its implications for sizing costly batteries.
There may be a limit to prudent downweighting, but as the fleet turns over and collisions between vehicles of widely disparate weights occur less frequently, any such limit would shift as well. Moreover, as drivers accept increasing automation of vehicle controls, in particular collision prevention, driving around surrounded by a couple tons of metal will begin to feel very 20th century.
I was changed by the 1990 introduction of the GM Impact electric car prototype at the Los Angeles Auto Show, then again by the amazing array of electric, hydrogen, and ‘green’ vehicles I witnessed at the 1991 Tokyo Motor Show. I knew that 'green' cars would be important. So, for 25 years now, this has been my focus at Green Car Journal and also at GreenCarJournal.com, plus an additional six years while feature editor at Motor Trend.
Covering this field for 25 years lends an invaluable perspective that’s important to understanding not only where we’ve been, but where we’re headed. There’s plenty of ‘green’ car news to share these days so it’s important to place it in context…and yes, that comes again with perspective and having been there while this all unfolded.
It has been enlightening to document the early research and development of the vehicles we take for granted today. While there is no crystal ball for predicting the automobile’s future, I’ve long been fascinated by researching patents for advanced and alternative fuel vehicle technologies because this does reveal what automakers and their technology suppliers have in mind for the years ahead.
Several decades ago, many of these vehicles and technologies were but ideas to potentially pursue, the subject of technology deep dives I attended, or opportunities that allowed driving advanced technology test mules on the track at automakers’ proving grounds.
Two of these experiences in the 1990s come readily to mind – driving a Japanese-market Toyota Crown sedan outfitted with an early gasoline-electric hybrid drive and a Geo Storm equipped with a prototype battery electric powertrain. These powerplants evolved to become the Hybrid Synergy Drive powering Toyota’s Prius and the electric drivetrain powering the GM EV1. The production versions were worlds better than the early prototype powertrains, lending the perspective to see just how far the technology had come.
Early developmental electric drive vehicles were often quirky and unexpectedly noisy in myriad ways, with high-pitched motor controller frequency noise and gear whine very apparent against a near-silent background devoid of internal combustion. The first natural gas vehicle prototypes often suffered from an annoying high-volume gaseous fuel injector clatter. Developmental hydrogen fuel cell vehicles sacrificed loads of space for large and cumbersome fuel cells and hydrogen storage. High efficiency diesel vehicles of decades past were unacceptably loud and emitted soot. Gasoline cars with high fuel economy were small, often lacking the creature comforts consumers expect and an illustration that sacrifice was required to achieve efficiency. Accomplishing extremely low tailpipe emissions often came at the expense of performance.
Drive an electric, natural gas, hydrogen fuel cell, high mpg gasoline, or high efficiency diesel personal-use vehicle today and they are quiet, usually quick, and ‘normal’ in all respects. A great many conventional internal combustion vehicles are now near-zero emission…not that you’d know it because they achieve this so seamlessly. We have great ‘green’ vehicles today because a lot has transpired over the past 25 years. Perspective.
I am confident that all of these vehicles, technologies, and fuels will play an important part in our motoring future. If the past 25 years are any indication, the vehicles we’ll be driving in the years ahead will be just amazing.
It is an exciting time to be involved with the auto industry, or to be in the market for a new car. The auto industry has responded splendidly to the challenge of new emission, fuel economy, and safety standards. The public is offered a greater than ever selection of vehicles with different powertrains, lightweight materials, hybrids, and electric drive vehicles across many platforms. We see increasing numbers of clean diesel vehicles and natural gas is making a resurgence, especially in the heavy-duty sector.
The positive response by the auto industry to the ever-tightening pollutant emission and fuel economy standards includes tactics such as the use of aluminum in the Ford F-150 and the increased use of carbon fiber by BMW, among many innovations introduced across many models and drivetrains. These evolutionary changes are a major tribute to the automobile engineers who are wringing out the most they can in efficiency and reduced emissions from gasoline and diesel engines. I view this evolutionary change as necessary, but not sufficient to meet our greenhouse gas goals by 2050.
New car ownership is currently down in Europe and is leveling off in the U.S. For global automotive manufacturers, however, this trend is offset by the dramatic growth in places like China and India. The potential for dramatic growth in the developing world is clearly evident: In the U.S., there are about 500 cars per thousand people, compared to about 60 and 20 in China and India, respectively.
How can these trends be reconciled with the environmental and health concerns due to climate change and adverse air quality in the developing world? The evidence for climate change accumulates by the day. Hazardous air quality in many major cities in China has drawn global attention, providing a visual reminder of how far the developed world has come and how much environmental protection needs to be accelerated in the developing world. Damaging air pollution is increasingly seen as a regional and even worldwide challenge. Dramatic economic growth in many developing countries is generating pollution that knows no boundaries. Air pollution from China, for example, fumigates Korea and Japan and is even transported across the Pacific to impact air quality in California and other Western states.
It will take a revolutionary change to provide personal mobility without unacceptable energy and environmental consequences. As a recent National Academy of Sciences (NAS) document states, it is likely that a major shift to electric drive vehicles would be required in the next 20 to 30 years. Electric drive vehicles, coupled with renewable energy, can achieve essentially zero carbon and conventional pollutant emissions. The NAS report also predicted that the costs of both battery and fuel-cell electric vehicles would be less than advanced conventional vehicles in the 2035-2040 timeframe.
This transition will not occur overnight and we will be driving advanced conventional vehicles for many years to come. In a study for the International Council on Clean Transportation, Dr. David Greene calculated that the transition could take 10 to 15 years, requiring sustained investment in infrastructure and incentives in order to achieve sustained penetration. While this investment is not inexpensive, it is projected that the benefits of this investment will be 10 times greater than the costs.
So where do we stand today on electric vehicles? We are seeing an unprecedented number of hybrid, plug-in hybrid, and battery electric vehicles across many drivetrains and models. There were about 96,000 plug-in electric vehicles sold or leased in the U.S. last year and more than 10 new PEV models are expected this year. While the sales fall short of some optimistic projections, it is an encouraging start after many years of more hope than delivery. The FC EV is expected to see significant growth after the initial limited introduction of fuel cells in the 2015-2017 timeframe by five major automobile companies.
It will take many years of sustained increasing penetration into new car sales to make this revolution a success. It is indeed a marathon and not a sprint. The challenge is how to ensure sustained sales of electric drive vehicles in the face of the many attributes of advanced technology conventional vehicles. Electric drive vehicle drivetrains have an affinity with the increasing amount of electronics on board the vehicle, which might ultimately yield very interesting, capable, and competitive vehicles.
I have little doubt that if we are serious about our energy, environmental, and greenhouse gas goals the revolution in technology will occur. All the major automobile companies seem to recognize this in their technology roadmap, which includes advanced conventional vehicles, plug-in hybrid vehicles, battery and fuel cell electric vehicles.
In conclusion, the next 20 years promise to be equally as challenging and exciting as the last 20 years. I have little doubt that the automobile engineers are up to the task ahead, but whether we have the political fortitude to stay the course to achieve the necessary air pollution and GHG reductions is far less certain.
Dr. Alan Lloyd is President Emeritus of the nonprofit International Council on Clean Transportation (ICCT). He formerly served as Secretary of CalEPA and Chairman of the California Air Resources Board.
The Ram 1500 EcoDiesel, a powerhouse pickup that offers the only advanced, fuel-efficient diesel engine in the light-duty truck segment, has earned the distinction as Green Car Journal’s 2015 Green Truck of the Year™. The award was presented at the San Antonio Auto & Truck Show in San Antonio, Texas, in the state that justifiably lays claim to being ‘truck country.’
Green Truck of the Year™ honors a truck that best exemplifies what can be achieved when environmental performance is viewed as important as traditional core values like functionality, payload, towing capability, and versatility. Blending environmental achievement with these traditional characteristics is not easy, and in many cases it’s also not cheap. But it is needed. Auto manufacturers are now placing significant new emphasis on trucks that achieve improved fuel efficiency, feature better overall environmental performance, and in some cases run on alternative fuels.
In addition to the Ram 1500 EcoDiesel, this year’s award finalists included the all-new Ford F-150, Chevrolet Colorado, and GMC Canyon pickups, plus the efficient gasoline Ram 1500 HFE. Each of these pickups brings its own brand of efficiency and improved environmental performance to bear in the truck market.
The Ram 1500 EcoDiesel distinguishes itself with a powerful and highly efficient powerplant that breaks new ground in the light-truck segment, accomplishing its mission of improved environmental performance without sacrificing the core values important to truck buyers. The engine produces 240 horsepower and a substantial 420 pound-feet of torque while offering rather impressive fuel economy, at least by pickup truck standards, with official EPA estimates of 20 mpg in the city and 28 mpg on the highway. This exceptional fuel efficiency provides a driving range of over 700 miles between fill-ups. The pickup is available in Regular Cab, Quad Cab, and Crew Cab versions with either two- or four-wheel drive.
Some of the key features of the 60-degree V-6 EcoDiesel engine include a dual overhead camshaft with 24 valves, cast iron block with aluminum heads, and a 15.5:1 compression ratio. A 29,000 psi common rail fuel injection system with solenoid injectors is used. The engine is equipped with a diesel oxidation catalyst, diesel particulate filter, and selective catalyst reduction to make it emissions-compliant in all 50 states. It can also use B20 biodiesel fuel.
Along with its considerable towing, hauling, and people-handling capabilities, the Ram 1500 EcoDiesel intelligently focuses on efficiencies with active aerodynamics including grill shutters that close for less drag at highway speeds. Other efficiency measures like an eight-speed automatic transmission and an air suspension system that lowers the truck at higher speeds are used to optimize fuel economy and achieve lower greenhouse gas emissions.
When Chrysler introduced the first clean diesel engine in the light-duty pickup segment, there was no way to know just how many pickup buyers would be won over and drive one away from the showroom. Today, production of this truck model has doubled beyond expectations and continues to gain momentum. It was clearly a breakthrough move for the Ram brand and a deserving winner of the 2015 Green Truck of the Year™ award.
While the electric LEAF is clearly Nissan’s highest-profile environmental statement worldwide, mainstream cars like this automaker’s Altima – which sells in hundreds of thousands of units annually – are the ones that carry the day. That may change in time as advanced and alternative powertrains seek to displace more conventional motivation, but this is today’s reality.
Our recent time with Nissan’s mid-size Altima 2.5 SV sedan proved this mainstream model a solid performer that not only delivers a pleasing driving experience at affordable cost, but pretty admirable fuel economy as well. Emerging two model years ago as an all-new iteration, the Altima remains a stylish choice with loads of functionality and new levels of connectivity and integration of on-board electronics.
The Altima is pleasing to the eye with a dramatic front end and sculpted fenders, a long sloping roofline, curvaceous taillights that flow into the body, and a fluid silhouette that helps achieve an efficient 0.29 coefficient of drag. While featuring an eye-catching and distinctive chrome-rimmed grille and projector headlight design, it’s otherwise devoid of gimmicky angles and lines that would diminish its appeal to mainstream buyers. Our 2.5 SV rolled on 17-inch aluminum alloy wheels and Michelin 215/55R17 tires.
Inside is a comfortable and accommodating interior designed with pleasing materials, logical controls, and pushbutton start. Remote engine start is also possible with the vehicle’s Nissan Intelligent Key, plus the ability to precondition the interior to desired temps via the key’s Intelligent Climate Control function. Both driver and front passenger are treated to what Nissan describes as Zero Gravity front seats. These fatigue-reducing seats have been designed with long commutes and road trips in mind, providing support in as close as possible to the ‘neutral posture’ position that NASA research shows a human body takes in a weightless environment. Rear seat passengers are provided comfortable seating and adequate legroom for long trips. The Altima also carries more than its share of gear for those trips with a truly spacious trunk.
Standard on all Altima models is Nissan’s customizable Advanced Drive-Assist display, which features a 4-inch color screen with 3D graphics located in the center of the instrument panel, flanked by a speedometer and tach. Here, key information can be selectively displayed including instant mpg, tire pressure readouts, audio system information, and turn-by-turn navigation instructions (in nav-equipped models).
Our Altima 2.5 SV included a Convenience Package as standard fare, adding in such niceties as a power sliding/tilt moonroof, SiriusXM Traffic and Travel Link, and folding mirrors with integrated turn signals. The SV model’s Technology Package brings an additional array of desired features including a 7-inch color touch-screen display and NissanConnect with navigation, mobile apps, and available hands-free text messaging.
Aimed at keeping driver and passengers connected while on the road, NissanConnect apps include Facebook, iHeart Radio, Google online search, and Pandora. The system is designed to allow introducing additional travel, social networking, and entertainment apps. In addition to connectivity, the Technology Package provides important safety technology including Blind Sport Warning, Lane Departure Warning, and Moving Object Detection systems.
During our 700-plus mile drive through California's gold country, we found the Altima 2.5 SV to be sure-footed, responsive, and comfortable to drive. Its 182 horsepower, 2.5-liter four-cylinder provides all the power needed on the road while delivering an impressive EPA-estimated 27 city and 38 highway mpg. An optionally available 3.5-liter V-6 provides 270 horsepower while achieving EPA-estimated 22 city and 32 highway fuel economy, a 1 mpg improvement over last year. Both versions move power to the road through an efficient Xtronic continuously variable transmission (CVT).
Higher fuel efficiency is an imperative these days and Nissan clearly gets it, especially with its 2.5-liter engine. The Altima achieves its efficiencies in myriad ways including the integration of lightweighting techniques like a thermoplastic resin intake manifold, lower rolling resistance tires, 40 percent friction reduction in the transmission, and a regenerative alternator that operates only while coasting to reduce parasitic load on the engine.
Nissan’s Altima is one of the best selling cars in the country and this automaker’s top selling model, period. Staying ahead of the curve in the crowded mid-size market is no easy thing, with the competition continually raising the bar in efficiency, safety, value, and performance. The 2015 Nissan Altima keeps its winning personality and adds in the right mix of new features and advanced electronics to keep its stride in this hot market segment.
Hyundai Sonata fans have expanded choices this year with the addition of a more efficient eco model. The 2015 Hyundai Sonata offers three four-cylinder powerplants including a standard 185 horsepower, 2.4-liter GDI (gasoline direct injection) engine in the Sonata SE and an optional 245 horsepower, 2.0-liter GDI engine in the Sonata 2.0T. The new Sonata Eco brings a 177 horsepower, 1-6 liter turbocharged Gamma engine to the party, a powerplant already available in the Hyundai Veloster. A hybrid version of the Sonata will come later.
Like Ford’s EcoBoost technology, the 1.6 T GDI Gamma engine uses a turbocharger, direct fuel injection, and CVVT (continuous variable valve timing) to achieve its high mpg goals. In the Sonata Eco, the exhaust manifold-integrated, twin scroll turbocharger features an air guided intercooler. The Sonata Eco is the first Hyundai to use a new seven-speed dual-clutch transmission.
All this adds up to an estimated 28 mpg city/38 mpg highway fuel efficiency rating, a 10 percent improvement over a 2.4 liter powered Sonata SE. Correspondingly, the Eco model costs about 10 percent more than the base Sonata 2.4-liter version as well. The Eco engine meets California’s ULEV-2 (Ultra-Low Emission Vehicle) and Euro 5 emissions standards.
The Sonata Eco comes standard with all the features of a Sonata SE plus a chrome grille, side mirror-mounted turn signal indicators, and automatic headlights. Inside, Eco drivers also get stitching on the instrument cluster hood, chrome interior door handles, 5-inch color touchscreen audio, rearview backup camera, 10-way power driver seat with lumbar support, and a Blue Link telematics system. The only option is the Technology package that includes a Blind Spot Detection System with Rear-Cross Traffic Alert and Lane Change Assist, leather upholstery, heated front seats, voice-controlled navigation system with an eight-inch screen, and more.
The 2015 Sonata Eco will go into production at the Hyundai Motor Manufacturing Alabama plant later this summer.
The San Antonio Auto & Truck Show has a big interest in trucks. After all, we’re talking Texas. Now ‘green’ is gaining even more emphasis at the show with Green Car Journal’s inaugural Green Truck of the Year™ award.
Green Car Journal has presented its coveted Green Car of the Year® award in Los Angeles for the past decade, recognizing the best and the brightest vehicles with improved environmental performance. The Green Truck of the Year™ award program in San Antonio is a natural complement. Trucks are a high-profile part of the San Antonio Auto & Truck Show and Texas is the largest truck market in the nation, making this an ideal venue for this new high-profile award.
In selecting the program’s five finalists, Green Car Journal editors consider all potential truck models in the U.S. market, weighing environmental attributes alongside traditional touchstones that define what makes a great pickup, such as functionality, versatility, safety, value, and style. The 2015 Green Truck of the Year™ winner is selected from these five finalists by a Green Truck of the Year™ jury comprised of automotive experts and Green Car Journal staff.
Trucks are no strangers to Green Car Journal. The magazine’s editors and writers have deep backgrounds with trucks, having served on staff at enthusiast truck publications during their careers. They have owned sport trucks, work trucks, custom trucks, and off-road trucks so they know what's important to truck buyers, just as they know the importance of 'green' features in the trucks of our future.
The 46th annual San Antonio Auto & Truck Show will take place on November 6-9, 2014 at the Henry B. Gonzalez Convention Center in San Antonio, Texas, with the 2015 Green Truck of the Year™ announced during the show's media day on November 6. Presented by the San Antonio Automobile Dealers Association, the show highlights the auto industry’s newest innovations and provides a ‘one-stop shop’ for evaluating the latest cars, trucks, and technologies. It is recognized as South Texas’ premier automotive event.
Race car designers go to extreme measures to make competition vehicles as light as possible. Lighter is faster. It’s simple physics; less horsepower is required to accelerate a light vehicle compared to a heavy one. So on a given amount of horsepower, a lighter race car with advanced materials will be faster than one that weighs even a few pounds more. It also takes less energy to slow the car, providing better braking performance. The use of lighter and more advanced materials generally contributes to better handling, too, since there is less mass working on the chassis through the corners.
Lighter vehicles are also more environmentally friendly since they require less energy to move from point A to point B. Shaving a few hundred pounds off a car design can yield major improvements in fuel economy. In addition to improved mileage, electric vehicles will see longer range between charges if they can be made lighter.
Trimming pounds off a production car is not as easy as it seems, however. Today’s road worthy vehicles must feature hundreds of pounds of federally mandated safety equipment that wasn’t required or available a few decades ago. Equipment like antilock brake systems, multiple airbags, advanced computer controls, and crash mitigating high-strength body structures all add weight to a vehicle design. Pile on the comfort and convenience equipment that most new car buyers expect in a modern car or light truck and the extra bulk adds up fast.
That’s why vehicle designs like the new BMW i3 and i8 are so intriguing. These models are revolutionary for mass production vehicles, featuring clean sheet designs that found BMW designers throwing traditional materials and production methods out the window, resulting in lightweight electric-drive cars with maximum strength for safety.
For example, the i3’s primary body and chassis structure are composed of two separate units that form what BMW calls the LifeDrive architecture. The primary body structure is the Life module and the Drive module incorporates the powertrain components. The passenger cell module is made from Carbon Fiber Reinforced Plastic, or CFRP. This is the first ever use of CFRP in a mass production vehicle. Carbon Fiber Reinforced Plastic is every bit as strong as steel yet is 50 percent lighter. When you can trim half the weight off something as large as a body structure, you are talking major weight savings.
Aluminum has been used as a lightweight material in the transportation industry for many years. The i3’s rear Drive module that houses the electric drive motor, rear suspension, and optional range extending gasoline engine is made of aluminum. While both are light and strong, Carbon Fiber Reinforced Plastic is even 30 percent lighter than aluminum. Materials throughout the i3 were selected for their weight saving properties and for their sustainability characteristics.
Beneath the flat floor (there is no transmission tunnel) of the i3 is a space-saving 22-kWh lithium-ion battery pack that tips the scales at 450 pounds. Power is delivered by a hybrid synchronous electric motor. The motor produces 170 horsepower with 184 lb-ft torque and can spin up to 11,400 rpm. The compact electric motor offers immediate torque and weighs just 110 pounds. With a curb weight of just 2,700 pounds, the i3 is nimble and great fun to drive. As in racing, automakers strive to save weight because it gives them a competitive edge. Sometimes, less is more.
Subaru is somewhat late to the game when it comes to hybrids, with its first entry – the XV Crosstrek Hybrid – making its appearance in dealer showrooms in recent months. It is based on the automaker’s conventional XV Crosstrek crossover model that debuted late last year.
Like all Subaru models except for the rear-drive BRZ sports car, the XV Crosstrek Hybrid features all-wheel drive, in this case the Active Torque Split version of Symmetrical All-Wheel Drive like that used in the non-hybrid XV Crosstrek. The system sends torque to the four wheels all the time and adjusts torque distribution in response to acceleration, cornering, and road conditions.
Likewise, the same 2.0-liter, four-cylinder BOXER engine is installed. The engine is rated at 148 horsepower and 145 lb-ft torque. For its in-house-developed parallel hybrid, Subaru adds an electric motor that’s integrated with the automaker’s Lineartronic continuously variable transmission. The motor supplies an additional 13.4 horsepower and 48 lb-ft torque, mainly to augment power for acceleration and hill climbing. It can also provide a brief period of all-electric driving.
Surprisingly, the Subaru hybrid uses a nickel-metal hydride battery pack rather than the more advanced (and costlier) lithium-ion batteries favored by many of the latest competitive hybrid models. The battery is kept charged via regenerative braking and fuel economy is helped by a stop-start system. This adds up to an estimated 28 mpg in the city and 34 mpg on the highway. This is an improvement of 5 mpg city and 4 mpg highway fuel economy compared to the standard XV Crosstrek.
The XV Crosstrek Hybrid retains the all-terrain capability expected in a Subaru. This includes 8.7-inches of ground clearance, four-wheel independent suspension, and special chassis tuning for more agile handling. The NiMH battery is located beneath the rear seats where it only slightly reduces passenger and cargo capacity.
Subaru’s standard XV Crosstrek Hybrid is available at an MSRP of $25,995. It features a 4.3-inch multi-function color display, exclusive to the XV Crosstrek Hybrid, that shows energy flow according to driving conditions. By switching screens, it displays driving information, entertainment content, and images from its standard rear vision camera. A Touring version is priced at $29,295 that comes with a touch-screen navigation system, leather-trimmed seating, power moon roof, and other upscale features.
The Toyota Corolla, the world’s best-selling nameplate worldwide with over 40 million sold since 1966, has long been a popular model due to its blend of efficiency and affordability. Toyota has upped its game with a completely-restyled 2014 Corolla that, for the first time, adds visual excitement with a more aggressive exterior design. The all-new compact sedan also brings improved driving dynamics and even greater efficiency, achieving up to 42 highway mpg delivered by the model's new Eco version.
This four-door compact sedan is offered in L, LE, S, and LE Eco versions. All are powered by a 1.8-liter DOHC four-cylinder engine. The L. LE, and S engines feature dual variable valve timing with intelligence (VVT-i), offering 132 horsepower and EPA estimated 36 to 38 highway mpg, depending on transmission choice. The fuel sipping LE Eco engine is equipped with the first use of Toyota's Valvematic technology in this country, with this new tech bringing 140 horsepower and a highway fuel economy rating of 42 mpg with a bit less torque. Valvematic, a tweak to the already-efficient variable valve system, works by minimizing intake-valve lift at small throttle openings to reduce parasitic pumping losses.
A driver selectable ECO function moderates acceleration and optimizes on-board systems to increase mpg by remapping the first half of the throttle travel for reduced response. The climate control system is also optimized to use less energy. The L variant uses a four-speed automatic transmission, while all others come with a continuously variable transmission with intelligence and shift mode (CVTi-S).
The 2014 Corolla offers impressive fuel efficiency, notably greater rear seat legroom than the previous generation, and high-value. Standard equipment includes LED headlamps, Bluetooth connectivity, air conditioning, power locks and windows, and eight airbags. All but the entry level L version have such desired features as a back-up camera, automatic climate control, cruise control, keyless entry, and Entune infotainment with a 6.1-inch touch screen as standard equipment.
Clearly, you get a lot for the money – one of the Corolla's endearing features. For 2014, buyers also get quite a satisfying driving experience for this class of vehicle and styling that requires a second look.
SPECIFICATIONS
Model: Toyota Corolla L, LE, S / Eco
Base-Level Drivetrain: Front-wheel drive
Type: Compact 4-door sedan
Base MSRP: $16,800-$21,300
Engine: 1.8 liter four-cylinder
Emissions, EPA/CARB: ULEV-II, LEV3
Valves, Configuration: 16-valves, VVT-i or Valvematic
Horsepower @ rpm: 132 @ 6000, 140 @ 6100
Torque @ rpm: 128 @4400, 126@ 4000
Transmission: Continuously variable transmission
Fuel Economy City, mpg: 27-30
Fuel Economy Highway, mpg: 36-42
Cruising Range, mi : 460
Passenger capacity: 5
Fuel Capacity, gal: 13.2
Curb Weight, lbs: 2855
Wheelbase, in: 106.3
Length, in: 182.6
Width, in: 69.6
Height, in: 57.3
Like most automakers. Volvo is downsizing its engines to make them more fuel efficient. Future Volvo models will be all be powered by a family of Drive-E four-cylinder, 2.0 liter gasoline and diesel engines – no more five and six cylinders. The new engines, developed by Volvo in Sweden, will offer higher performance than today’s six-cylinder variants. They will also be 100 pounds lighter, more compact, and reduce fuel consumption by 10 to 30 percent.
The first new two-liter, four-cylinder Drive-E powertrains will appear in 2015 Volvos. These T5 and T6 gasoline and D4 diesel engines will all use the same architecture that includes an aluminum block, dual overhead cams, 16-valves, and continuously variable valve timing. They can be machined and assembled on the same production lines. All Drive-E models feature start-stop and brake regeneration.
Except in the U.S, the new S60 sedan, V60 wagon, and XC60 crossover will be available with three engines. The T5 and D4 will also be available in the new Volvo V70 wagon, XC70 crossover, and S80 sedan. We will not get the diesel engine here in the U.S. Rather, customers can choose between the new Drive-E engines and some current engines until Volvo transitions solely to Drive-E.
The T6 is both turbocharged and supercharged, using a Roots-style blower supercharger that fills in the bottom end torque to lend the feel of a large, naturally aspirated gasoline engine. The mechanically linked compressor starts functioning immediately at low rpms, while the turbocharger kicks in when airflow builds up. Power is impressive, with the T6 producing 302 horsepower and 295 lb-ft torque. The T5 is turbocharged only and is rated at 240 horsepower with a torque rating of 258 lb-ft.
Friction-reduction in the T5 and T6 includes ball bearings on the camshaft. There is also high-speed continuous variable valve timing and intelligent heat management with a fully variable electric water pump. Other innovations are built in, with the Drive-E diesel featuring i-ART (intelligent-Accuracy Refinement Technology) with pressure feedback from each fuel injector instead of a traditional single pressure sensor in the common rail. Each injector has an intelligent chip on top that monitors injection pressure. Using this information, the self-adapting i-ART system ensures that the ideal amount of fuel is injected during each combustion cycle.
The diesels also feature refinements such as an advanced twin-turbo, reduced friction, and a smart valve on the cooling system for a more rapid heat-up phase after a cold start. Featuring a very high 36,750 psi rail pressure, the D4 produces 181 horsepower and 295 lb-ft torque. Drive-E engines are mated with either a new eight-speed automatic or an enhanced six-speed manual tuned transmission, though U.S, models will probably come only with the automatic. Both FWD and AWD will be available.
While official fuel economy numbers are not yet available, Volvo is estimating 36.8 mpg for a Volvo S60 T6 with the new 8-speed automatic and a 0-62 mph (0-100 kph) time of 5.9 seconds. The Volvo S60 D4 with a manual transmission should rate in the 62 mpg range.
Drive-E engines are ready to be used with an electric motor in hybrid Volvos. Because of the compact size of the four-cylinder engines, the electric motor can be located in front or at the rear. The battery pack would be located in the center of the car.
The evolution of the auto industry has been no less than amazing. I have witnessed this first-hand while documenting the advent of ‘green’ cars over two decades at Green Car Journal and at Motor Trend before that. We had electric cars back in the 1990s as we do now, battling for acceptance, with other alternative fuels also jockeying for position amid an expansive field of conventional vehicles. Things change, things stay the same…although the numbers have improved for electrics.
While not particularly ‘green’ in earlier years, the automotive field did show early inclinations toward efficiency, particularly after the Arab oil embargo of the 1970s and oil disruptions of the 1980s. That was short lived as gasoline disruptions eased and gas was again plentiful and cheap. It was the 1990s, though, when industry and consumer interest in ‘green’ kicked into high gear.
The advancement of ‘green’ vehicles has largely been driven by the State of California, which has long required new vehicles to run cleaner than those meeting federal standards, a nod to the state’s epic half-century battle with urban smog. California has led the way in recent times with its milestone low emission vehicle program and its requirements for ever-cleaner running cars meeting seemingly impossible emissions goals. All this led to more stringent federal standards and, along the way, internal combustion vehicles with near-zero tailpipe emissions. It also hastened the introduction of hybrids and battery electric cars.
Early on, interest in greener cars was primarily driven by concerns such as tailpipe emissions, air quality, and petroleum dependence, the latter focused on resource depletion, the environmental cost of petroleum production, and significant dependence on imported oil. But that has evolved. The release of multiple studies singling out CO2 emissions as a major contributor to climate change added yet another reason to demand cleaner cars, with carbon emissions now a focal point. New regulations requiring much higher fuel economy in the years ahead – accomplishing the multiple goals of reducing petroleum use and lowering CO2 emissions through higher efficiency – have helped change the dynamic as well, as have the shockingly high gas prices seen late last decade. Together, they created the perfect storm for ‘green’ cars.
The cumulative result of regulations and incentives – plus an auto industry increasingly looking at ‘green’ not only as a requirement but as a market advantage – is a field of greener choices at new car showrooms. We now have internal combustion vehicles with near-zero emissions. A growing number of vehicle models are hybrids, plug-in hybrids, and battery electric cars with a few gaseous fuel models as well. The vast majority, however, are conventional vehicles that are worlds better than those of the past – gasoline and clean diesel models that achieve 35, 40, and 45 mpg or better with 50+ mpg clearly on the horizon.
While electric vehicles are often the topic du jour, it’s evident that new car buyers want the ability to pick their path to a greener driving future, choosing the vehicle, powertrain, and fuel that make them comfortable in their daily journeys. It has been satisfying to witness the auto industry’s decades-long evolution that’s now enabling consumers to do just that.
It’s hard not to wear a broad grin while driving Audi’s 2014 A6 TDI. One of a growing array of upscale TDI models in the Audi stable, the $57,500 A6 TDI presents a compelling case for premium mid-size sedan buyers to go clean diesel. Time behind the wheel illustrates the well-balanced nature of the A6 TDI, which artfully blends luxury, comfort, performance, and efficiency in a very desirable package. Plus, it’s just fun to drive.
The A6 TDI’s 3.0-liter turbocharged direct injection V-6 is surprisingly quiet and smooth, dispensing with the two inherent challenges that diesel as a whole has faced in attracting U.S. buyers in the past. Ride quality, handling, and overall driving characteristics are excellent. The A6 TDI is powerful, with strong low-end torque pressing you back in the seat with ease while delivering 240 hp and an impressive 428 lb-ft torque. All this power is channeled to the highway via an 8-speed tiptronic transmission and quattro all-wheel drive. Acceleration from 0-60 mph is achieved in a quick 5.5 seconds.
This level of power-at-the-ready does not sacrifice efficiency as one might expect, particularly in highway driving as the model achieves a rather impressive 38 mpg. Total driving range of over 700 miles is possible. The TDI clean diesel’s inherent efficiency is bolstered with other efficiency measures including a relatively lightweight chassis and aluminum body panels, plus a start-stop efficiency system that shuts the engine down under specific conditions such as extended idling or at stoplights. The engine restarts instantly when a driver releases the brake pedal.
Driving performance and efficiency are just part of the story with the Audi A6. This model makes a point of enveloping driver and passengers in a luxurious and accommodating interior, paying great attention to detail throughout the cabin with a curved wraparound dash, fine leather, and high-end materials. Instrumentation and controls are well placed and intuitive.
Infotainment and connectivity features are extensive with MMI Navigation plus and Audi connect, which offers Google Earth mapping and in-vehicle Wi-Fi connectivity for up to eight wireless devices. Available are an array of sophisticated features including night vision assistant, heads-up display, and Audi pre sense plus, the latter system helping to detect imminent collisions and initiate protective measures.
The A6 TDI presents a very upscale exterior with sharp lines and unmistakable Audi design cues, among these Audi’s signature LED lighting technology. Add in efficient and responsive TDI power and the package gets even more compelling.
Nissan’s one-of-a-kind Frontier Diesel Runner made its first appearance at the Chicago Auto show, illustrating this automaker’s interest in the increasingly important clean diesel pickup market. Powered by a 2.8-liter Cummins turbo diesel with nearly 200 horsepower and, more importantly, some 350 lb-ft torque, the pickup features the performance and functionality required of today’s pickup buyers who often combine work and personal applications.
The Diesel Runner is based on Nissan’s Frontier Desert Runner 4x2 model and was created to gauge consumer reaction to a diesel-powered midsize Nissan pickup. No doubt, things will go in that direction. Nissan already has a partnership with Cummins to provide 5.0-liter turbodiesel V-8s for its next-generation Titan full-size pickup that’s arriving in 2015.