The H-1 was designed for use as a military transport vehicle that was made famous during the Gulf War. Now it has a few more creature comforts but still is able to cross streams 3 feet deep, scale walls 22 inches high, climb grades of 60% and traverse side-slopes of 40%. An original design requirement was a 12 year life span under combat conditions. The ALPHA H1 is powered by a 6.6L 300hp Duramax Diesel w/ 520lb. ft-torque and a 5 speed Allison 1000 transmission.
The H-2 has set the standards for todays luxury SUV's with equipment, styling and impressive off-road capabilities. Leather interiors, BOSE stereo systems, tri-zone climate control, On-Star, traction control, onboard air compressors and DVD entertainment systems are part of its luxury and it can still scale vertical walls 16 inches high, climb grades of 60% and traverse side-slopes of 40%. The 2008 H2 is powered by a 6.2L 393hp Vortec engine w/ 415lb. ft-torque and a 6 speed Hydra-Matic 6L80 transmission.
The H2 SUT has all the same luxury of the H2 but is the sport-utility truck that easily converts from a five-passenger SUV with a 3.2-ft. cargo box to a two-passenger pickup with a 6.0-ft. cargo box, thanks to the adaptable midgate. The H2 SUT can scale vertical walls 16 inches high, climb grades of 60% and traverse side-slopes of 40%. The 2008 H2 is powered by a 6.2L 393hp Vortec engine w/ 415lb. ft-torque and a 6 speed Hydra-Matic 6L80 transmission.
The H3 the newest addition to the HUMMER family is equipped with a standard 3.7L I5, 242hp engine w/ 242lb. ft-torque. A 5-speed manual transmission with overdrive is standard, and a 4-speed automatic transmission with overdrive is optional. Other options include leather interiors, sunroof, premium stereo systems and off-road equipment. While this may be the little brother to the H1 & H2, it can still go thru 24 inches of water, scale a 16 inch vertical wall, climb grades of 60%, traverse side-slopes of 40% and still get 20 MPG on the highway!!!! One additional option for 2008 is the ALPHA H3 which has a 5.3L 300hp engine w/ 320lb. ft-torque and a 4 speed Hydra-Matic 4L60 transmission.