General Motors announced Monday, December 7, 2009 it will invest $336 million in the Detroit-Hamtramck assembly plant to begin production of the Chevrolet Volt electric car, with extended-range capabilities, in 2010. It will be the first plant in the U.S. owned by a major automaker to produce a electric car. (Photo by John F. Martin for General Motors) X10SN_SN285 (7/16/2010)