
The Renaissance Center, left, the global headquarters of General Motors Co. (GM) stands in Detroit, Michigan, U.S., on Thursday, June 6, 2013. General Motors Co., aiming to increase customer loyalty, announced it will expand its free scheduled maintenance program to most 2014 Chevrolet, Buick and GMC vehicles in the U.S. Photographer: Jeff Kowalsky/Bloomberg
Jeff Kowalsky/Bloomberg