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Photos: Green is the theme at Detroit auto show

January 13, 2008 10:00 AM PST
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Although GM hopes to increase the number of ethanol stations in the U.S. from about 1,400 to 15,000, the company continues to invest in other technologies, including hybrids and all-electric vehicles.

The Chevy Volt, shown here at the Consumer Electronics Show, is an electric car with batteries recharged by a motor that runs on ethanol or gas. It's expected to come out by 2010.

Photo by Michael Kanellos/CNET News.com

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