What You Should Know About Green Cars

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published 1 January 2012

If fuel economy is high on your list of specs for your new car, a number of technologies can satisfy that need. Which is best for you depends on your other goals.

For example, do you want to be as green as possible? An electric vehicle (EV) is the answer. Want superb fuel economy without worrying about plugging in? A hybrid is a good choice. Do you crave power and the feel of gears shifting as you accelerate? If so, hybrids and EVs are likely out of contention, but diesels and turbocharged gas engines are good candidates.

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Lists Buying & Leasing A Car

Electrics, such as the Nissan Leaf

How it works: A battery-powered electric motor runs all the car's systems. Charge the battery at home and you have about 100 miles to go before you need to recharge.
Why it's cool: Zero tailpipe emissions, plus pickup
Trade-offs: Limited range; few public charging stations

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Plug-in Hybrids, such as the Chevrolet Volt

How it works: A battery-powered electric motor you can plug in at home operates for a limited number of miles. After the battery is depleted, a gas engine kicks in.†
Why it's cool: EV range, but without "range anxiety"
Trade-offs: High price premium; often underpowered

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Hybrids, such as the Toyota Prius

How it works: The battery-powered electric motor assists the engine and can recapture energy from braking. The engine shuts down when you stop, saving fuel.
Why it's cool: Eco-friendly without high price of a plug-in
Trade-offs: Often underpowered; battery reduces cargo area

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Diesels, such as the Volkswagen Jetta TDI

How it works: Small but powerful engines plus diesel fuel’s high energy content make these vehicles up to 35% more efficient than comparable gas-powered vehicles.
Why it's cool: Powerful, yet fuel-thrifty
Trade-offs: Diesel fuel costs more than gasoline

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Turbocharged gas engines, such as the Chevrolet Cruze Eco

How it works: The exhaust from the engine powers a fan, which forces more air into the engine’s cylinders. This generates extra power, so smaller engines can be used.
Why it's cool: Cheapest way to go green
Trade-offs: Good but not stellar fuel economy

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Anderson has been with Kiplinger since January 2004, when she joined the staff as a reporter. Since then, she's covered the gamut of personal finance issues—from mortgages and credit to spending wisely—and she heads up Kiplinger's annual automotive rankings. She holds a BA in journalism and mass communication from the University of North Carolina at Chapel Hill. She was the 2012 president of the Washington Automotive Press Association and serves on its board of directors. In 2014, she was selected for the North American Car and Truck Of the Year jury. The awards, presented at the Detroit Auto Show, have come to be regarded as the most prestigious of their kind in the U.S. because they involve no commercial tie-ins. The jury is composed of nationally recognized journalists from across the U.S. and Canada, who are selected on the basis of audience reach, experience, expertise, product knowledge, and reputation in the automotive community.