Even the best fuel saving technology can be negated by poor driving habits. Thus, many of the latest vehicles come with features that help you drive ‘smarter’ to save fuel. The simplest provide feedback through computer displays showing instantaneous and average mpg, range to empty, and more. More sophisticated displays may also graphically indicate efficient driving, like leafs turning greener.
Some vehicles have more active features that coach drivers so they can drive more efficiently. By staying in the green within the blue and green ‘coaching bars’ in Honda's Eco Assist display, drivers can see in real-time how they can achieve higher mpg. Pressing the system’s green ECON button also causes the engine and other energy-consuming systems to automatically operate more efficiently.
Similarly, BMW Driving Dynamics Control allows choosing between Eco Pro, Comfort, Sport, and Sport+ driving modes. Along with shutting down unnecessary systems that consume power, Eco Pro includes a coasting function that decouples the engine from the drivetrain when the accelerator is released between 30 and 100 mph.
Fiat's eco:Drive provides efficiency feedback after a trip, not during it. While driving, eco:Drive records data that can be transferred to a memory stick plugged into its USB port. This data can then be accessed on a PC or laptop to enable a driver to review how well they did. An ecoIndex scores driving skills on a 100 point scale. Tutorials provide tips on how to score better and scores can be compared to tell if driving skills are improving.
With Nissan's Eco Pedal, the accelerator pedal pushes back against a driver’s foot to encourage accelerating in a fuel-efficient manner. More aggressive acceleration is available if the driver pushes harder. Additionally, an instrument panel provides four levels of indication depending on acceleration – no light when the vehicle is stopped, green with appropriate pedal pressure, flashing green with almost-unfavorable pressure, and amber for unfavorable pressure.