Green machines: Looking way ahead
New passenger vehicles must achieve the equivalent of a combined city and highway fuel economy average of 35.5 mpg by 2016. Here's a look at fuel sippers on the way.Read the complete story.
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Toyota Prius
Toyota says it will have plug-in versions of the Prius hybrid on sale in 2012. This is a test vehicle with San Francisco mayor Gavin Newsom behind the wheel.
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