General Motors Company, also known as GM, is a United States based automaker with headquarters in Detroit, Michigan.
By sales, GM ranked as the largest U.S. automaker and the world's second largest for 2008. GM had the third highest 2008 global revenues among automakers on the Fortune Global 500. GM manufactures cars and trucks in 34 countries, recently employed 244,500 people around the world, and sells and services vehicles in some 140 countries