Two cars of the public rail are seen covered with a advertisement for 2014 Chevy Silverado pickup truck as they move past General Motors World Headquarters in Detroit

 
Two cars of the public rail are seen covered with a advertisement for 2014 Chevy Silverado pickup truck as they move past General Motors World Headquarters in Detroit
Two cars of the 'people mover' public rail are seen covered with a advertisement for the 2014 Chevy Silverado pickup truck as they move past General Motors World Headquarters in Detroit, Michigan January 11, 2013. REUTERS/Rebecca Cook