The most fuel-efficient cars. View the gallery.

目前最高燃油能效的汽车。

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Porsche has unveiled its most fuel-efficient model yet.

保时捷发布了起品牌迄今为止燃油效率最高的车型。

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Over the long term, they would demand fuel-efficient vehicles.

在长期，它们会需要省油的汽车。

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A secondary benefit is getting gas-guzzling old clunkers off the road and replaced with more fuel-efficient band new models.

VOA: standard.2009.05.18

"Two-point-four billion dollars in highly competitive grants to develop the next generation of fuel-efficient cars and trucks, powered by the next generation of battery technologies all made right here in the U.S.of A,"

VOA: standard.2009.08.05

"At a per-passenger-mile basis, rail is about three times as efficient as travel by car, in terms of fuel efficiency, and six times as efficient as travel by air, so there are pretty substantial pollution reduction benefits both in terms of greenhouse gases and other pollutants."

VOA: standard.2010.02.15

And, of course, a hybrid or fuel-efficient car emits less carbon dioxide than an SUV.

BBC: Search the

Politicians are loath to raise gasoline taxes, which would force people to purchase more fuel-efficient vehicles.

FORBES: Car-Wreck Regs

Chevrolet provides customers with fuel-efficient vehicles that feature spirited performance, expressive design, and high quality.

ENGADGET: Chevy Spark EV rated most efficient retail car with 82-mile range, 119 MPGe