A 2011 Chevrolet Volt electric vehicle moves down the production line at the Detroit-Hamtramck Assembly plant in Hamtramck, Michigan

 
A 2011 Chevrolet Volt electric vehicle moves down the production line at the Detroit-Hamtramck Assembly plant in Hamtramck, Michigan
A 2011 Chevrolet Volt electric vehicle moves down the production line at the Detroit-Hamtramck Assembly plant in Hamtramck, Michigan November 30, 2010. REUTERS/Rebecca Cook (UNITED STATES - Tags: TRANSPORT BUSINESS EMPLOYMENT)