General Motors sells assembled production lines.
GMC (automobile) . GMC sells pickup and commercial trucks , buses , vans , military vehicles , and sport utility vehicles marketed worldwide by General Motors . General Motors Company , commonly known as GM , is an American multinational corporation headquartered in Detroit , Michigan , that designs , manufactures , markets , and distributes vehicles and vehicle parts , and sells financial services . In addition to brands selling assembled vehicles , GM has also had various automotive-component and non-automotive brands , many of which it divested in the 1980s through 2000s . General Motors produces vehicles in 37 countries under twelve brands : Chevrolet , Buick , GMC , Cadillac , Holden , HSV , Opel , Vauxhall , Wuling , Baojun , Jie Fang , and Ravon .