Hummer was a brand of trucks and SUVs marketed since 1992 by AM General when it began selling a civilian version of the M998 Humvee. In 1998 General Motors purchased the brand name and marketed three vehicles: the original Hummer H1, based on the Humvee, and the Hummer H2 and the Hummer H3 models that were based on other, smaller civilian-market GM platforms.
