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General Motors employee Peggy Burnside inspects a 2012 Chevrolet Sonic as it rolls off the assembly line at the GM Orion Assembly Plant Wednesday, September 14, 2011 in Lake Orion, Michigan. The 2012 Chevrolet Sonic with a 1.4L turbo delivers an EPA-estimated 40 mpg on the highway with a 6-speed manual transmission and city fuel economy of 29 mpg. (Photo by John F. Martin for General Motors)