Operates a motor vehicle (cars and trucks) manufacturing company. The Company also produces cars through its Holden, Opel, and Vauxhall units. It has other operations that include Hughes Electronics (DIRECTV), Allison Transmission (heavy-duty automatic transmissions), and GM Locomotive (locomotives, diesel engines). GM also has stakes in Isuzu Motors, Fuji Heavy Industries (Subaru), Suzuki Motor, Fiat (Alfa Romeo, Lancia), and GM Daewoo Auto & Technology.