It’s been clear from our first week behind the wheel of our long-term 2012 Kia Optima Hybrid that this car is destined to be a family favorite. That initial impression hasn’t faded as the miles roll by. This car simply does everything well while delivering exceptional fuel economy.
How exceptional? The EPA rates the Optima Hybrid at 35 mpg in the city and 40 mpg on the highway. We have actually been doing better than that with a combined average hovering around 40 mpg. The Optima hybrid responds well to efficient driving techniques. With a light touch on the accelerator, we’ve been able to push highway mileage up into the mid-40 mpg range. Add to those numbers a 17.2 gallon fuel tank and you have a cross country cruiser with very long legs.
One of the keys to this great fuel economy is the hybrid system’s ability to operate in pure electric mode at speeds up to 62 mph. It’s quite impressive to tip out of the throttle slightly at freeway speeds and watch the energy gauge drop into the EV zone as the gasoline engine shuts down. Kia is using an advanced technology 270 volt lithium-polymer battery in the Optima Hybrid.
According to Kia, it takes up 40 percent less space, is 20-30 percent lighter, and 10 percent more efficient than comparable nickel-metal-hydride battery packs. Impressively, it offers twice the power density and will hold a charge 25 percent longer, while weighing only 95 pounds. Kia is backing the battery with a 10-year/100,000 mile warranty.
The Optima Hybrid’s 2.4-liter, Atkinson cycle four-cylinder gasoline engine produces 166 horsepower. It is coupled via a wet clutch to Kia’s Interior Permanent Magnet synchronous electric motor that kicks in another 40 horsepower and 151 lb-ft of torque. That’s enough punch to accelerate from 0-60 mph in 8.3 seconds. We also appreciate the six speed automatic transmission that delivers more positive throttle response than the CVTs commonly used in hybrids.
One of the pleasant surprises we’ve experienced is the constant string of compliments we receive on the Optima Hybrid’s styling. Kia worked on the hybrid variant’s aerodynamic styling to bring its coefficient of drag down to an impressive 0.26 Cd. That’s extremely low for this size car and a 10 percent improvement over the standard Optima. It also rides a bit lower and, with its 17 inch alloy wheels and 55-series low rolling resistance tires filling up the wheel wells, has a stance more like that of a performance sedan than a fuel-sipping hybrid. The Kia Optima Hybrid is a family sedan that is fun to drive, economical, versatile, and stylish.