At the time, GM began marketing the Hummer H2 that was also assembled by AM General on a modified GMC Sierra 2500HD chassis.

Under a 1999 deal, General Motors bought marketing rights to the Hummer name, began marketing Hummer-branded vehicles designed by GM, and rebadged the original version built by AM General as the Hummer H1. The civilian version of the Humvee, marketed as the Hummer, went on sale in 1992. After the Gulf War was over, AM General modified the M998 Humvee military version for the civilian marketplace powered by 6.2 L GM Diesel V8 engine. The vehicle was also promoted by actor Arnold Schwarzenegger. military and featured in photographs from the Persian Gulf War during the early 1990s. Nicknamed the Humvee, the vehicles were used by the U.S. In 1983, AM General Corporation was awarded a production contract for 55,000 High Mobility Multipurpose Wheeled Vehicles (HMMWV). GM stopped marketing the H1 in the 2006 model year, but AM General continued production of the military Humvee versions through 2018. AM General built both the H1 and the Humvee in its Mishawaka, Indiana, facility.

The civilian version was produced from 1992 through 2006 and was the first of what became the Hummer line. Originally designed strictly for military use, the off-road vehicle was released to the civilian market. The Hummer H1 is a four-wheel-drive utility vehicle based on the M998 Humvee, which was developed by AM General when it was a subsidiary of American Motors Corporation (AMC).

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