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Fuel-efficient Vehicles

Fuel-efficient vehicles are extremely important. Because we need to cut our fuel consumption and find other ways of powering cars, fuel-efficient vehicles are now very popular. Check out these great fuel-efficient vehicle articles from HowStuffWorks.

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How the Air Car Works

As gasoline continues to lose its cachet as a reliable energy source, auto manufacturers have started to turn toward cleaner-burning fuels. However, they're still trying to figure out how to use the cleanest fuel of all -- the air we breathe.

How does a hybrid car work?

We are all familiar with gasoline-powered cars, and most people have heard about or seen electric cars. So what exactly is a hybrid car?

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