Big! Tough! Fast! If you think you are in to beat the off-road track, Hummers are the perfect company to survive unfriendly terrain and scare the hell out of any soul that comes its way. There are only three current models of Hummer: the H1, H2 and H3. The Hummer H1 is a civilian vehicle meant for off-road purposes, patterned after the M998 High Mobility Multipurpose Wheeled Vehicle (HMMWV), commonly termed as Humvee. It was launched in 1992 after the active campaigns of Arnold Schwarzenegger who owns a number of Hummer units himself. The Hummer H2, on the other hand, is a large truck that sits six people. It is a model that highly resists overturning, and is both a general purpose vehicle and an off-road vehicle. Last is the Hummer H3 which can either be a traditional midsize SUV or a midsize pickup. It takes off from the GMT 355, a compact pickup truck, and was released in 2006. The company that owns the Hummer line of trucks is General Motors, the largest US automaker company by sales headquartered in Detroit, Michigan.