In a Dec. 7, 2009 file photo, Michigan Gov. Jennifer Granholm drives a pre-production Chevrolet Volt at the Hamtramck Assembly plant in Hamtramck, Mich. GMs' planned shutdown of its Detroit-Hamtramck plant would leave only one auto assembly factory in the city known for "putting America on wheels," but the closure and job losses are not expected to stall-out Detroit's remarkable comeback following its 2014 bankruptcy exit. GM wants to close four facilities in the United States and one in Canada. (AP Photo/Carlos Osorio)