Top 5 green cars (that aren't hybrids)

You don't have to drive a hybrid to be green. Here are five top fuel sippers that don't use an electric motor.

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There's a lot of hype around hybrids as the only truly efficient class of cars. Not true. Small displacement gas and diesel cars might be your best choice for transportation that is economical to buy as well as use. Brian Cooley runs down a list of top picks.

And here is CNET's Green Car Buying Guide if you want to get more information.