It all started as a military vehicle in the late 1970s. Since then, AM General has built more than 175,000 HMWWV, Humvee, or Hummer H1 vehicles. Now comes the Hummer H2. It Is built at a brand-new factory in Indiana that's a duplicate of other General Motors plants. In effect, it is a GM plant. GM now owns all marketing rights to the Hummer brand, and contracts with AM General to build the new Hummer H2 using the GM worldwide production system. The Hummer 2 is actually longer and taller than the original H1, but doesn't look it. The H2 represents an impressive production achievement: In just 16 months from the go signal, the Hummer H2 was designed, engineered and tested, and the new factory was built. It's a serious off-road SUV built on GM's superb T800 truck platform, which is shared with the Chevy Suburban and Tahoe SUVs and the Chevy Silverado pickups, plus the Cadillac Escalade, Chevy Avalanche, GMC Sierra and Yukons, and other vehicles. But this isn't just a gussied-up Suburban. The H2 boasts unique Hummer engineering and attributes and offers truly impressive off-road capabilities. And unlike the H1, it provides occupants with a luxurious interior that's comfortable and convenient. Its size and design makes suitable for everyday use.