Media surround General Motors Chairman and CEO Rick Wagoner (left) and Vice Chairman Bob Lutz after the unveiling of the production version Chevrolet Volt – a vehicle that delivers up to 40 miles of gasoline – and emissions-free electric driving, with the extended-range capability of hundreds of additional miles – Tuesday, September 16, 2008 in Detroit, Michigan. Production is scheduled to begin late 2010. (Photo by Tom Pidgeon for General Motors)