General Motors Company (NYSE: GM, TSX: GMM.U), commonly known as GM, formerly incorporated (until 2009) as General Motors Corporation, is an American multinational automotive corporation headquartered in Detroit, Michigan and the world's second-largest automaker in 2010. For the first half of 2011, GM was the world's largest automaker.
GM employs 209,000 people and does business in some 157 countries. General Motors produces cars and trucks in 31 countries, and sells and services these vehicles through the following divisions/brands: Buick, Cadillac, Chevrolet, GMC, Opel, Vauxhall, and Holden, as well as two joint ventures in China. GM's OnStar subsidiary provides vehicle safety, security and information services.