FLINT- NOVEMBER 24: A GM Chevrolet Volt electric vehicle is shown at the General Motors Flint Engine Operations plant November 24, 2010 in Flint, Michigan. GM announced they will be investing more ... more 
FLINT- NOVEMBER 24: A GM Chevrolet Volt electric vehicle is shown at the General Motors Flint Engine Operations plant November 24, 2010 in Flint, Michigan. GM announced they will be investing more than $160 million at three plants in Michigan and Ohio, including the Flint plant, to increase production of their Ecotec 4-cylinder engines for vehicles such as the Chevy Volt and the Chevrolet Cruze. (Photo by Bill Pugliano/Getty Images) less 
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Getty Images | Photo By Bill Pugliano / Getty Images
Wed, Nov 24, 2010 12:26 PM EST