In 1979 AM General announced the all-terrain vehicle HMMWV-M998. It should be an easy to operate, excellent maneuverability and could not carry any weapons. The next stage was in 1992. AM General launched the sale of a version for civilians - Hummer H1. Before the announcement there was an upgrade. Success of the vehicle went beyond all expectations. Despite the declared high price, Hummer SUV quickly became popular, no doubt due to its stunning appearance and a unique super maneuverability in comparison to ordinary SUV.
Hummer H1 is the largest SUV in the world. Total weight of the "tank" is nearly 5 tons. Each year, the car is subjected to some changes, which helps to stay it at the top of the SUV market for many years. Model range consists of four modifications: double with large cargo compartment, four-seated pickup with a soft-top, four-seated pickup with a hard top and a wagon with a fully enclosed body of aluminum. Beginning from 2003, the ELocker latching differential with electronic control is installed at the car. In the case of advance on a bad road, enabled ELocker forces to switch the locking during slipping and the rear wheels get the rotation with the same angular speed. In addition to improve the cross-country ability, tire pressure cross-country ability with remote control system is installed, which depending on the coverage changes the pressure in the tires for better traction. The car uses a V8 diesel engine with a volume of 6.5 liters and the power output of 170 hp.
Additionally customer can also order a turbo diesel engine with a capacity of 195 hp. Fuel consumption is 22 liters per 100 km.
Standard equipment has a system of permanent four-wheel drive Torq Trac 4 (TT4) along with a center differential Torsen II. Beginning from 2005 the plant started production of H1 with Alpha name with two different body styles: pickup and station wagon. Both of them have four seats. The model has become a more spacious with improved sound insulation of passenger compartment. There is also a new diesel Duramax with V8 16V 6,6 liter engine, which capable to develop 300 hp. It should be noted that the weight increased to 4,670 kg and clearance of 5 cm. In June 2006production of Hummer H1 was closed. The flagship brand became Hummer H2