2007 SEMA Auto Show!

HUMMER H3R Off-road Concept

Thanks primarily to the efforts of the Team HUMMER racing team, led by Rod Hall, the HUMMER H3 has quickly proved to be a formidable off-road competitor. It runs - and wins - in stock-class off-road races, where racers must rely on production chassis and powertrains. The H3R pays homage to the racing SUV while pushing the envelope on what could be considered "stock" - supposing the factory decided to drop in the 505-horsepower, 7.0L V-8 from the Corvette Z06. In addition to the high-powered engine, the H3R also sports a number of racing-inspired exterior modifications and an interior that blends racing functionality with boulevard comfort and convenience. No, a production H3 equipped with an LS7 engine isn't in the cards, but for 2008, HUMMER offers the H3 Alpha, which is powered by a new, 300-hp 5.3L all-aluminum V-8.

Vehicle highlights:

• H3R concept
• LS7 7.0L V-8 with 505 horsepower and Hydra-Matic 4L60 electronically controlled four-speed transmission
• Custom valve covers and ignition coil covers
• New, forward-tilting hood with Lexan see-through insert
• Power-operated hood hinges
• Custom air induction system with dual air boxes
• Racing-inspired paint scheme with custom badging
• Off-road lighting package with unique light bar
• Custom rear dual exhaust system with four outlets
• Wheel flares with quick-remove fasteners
• HID headlamps from Starr Lighting
• Clear front corner lamp lenses
• Front bull bar
• Body-color "Jerry" can mounted on the spare tire carrier
• Twenty-inch wheels
• Mickey Thompson Bear Claw 35-inch off-road tires
• Rotora high-performance brake package
• Fixed quarter window inserts
• Eaton front locking differential
• Enhanced cooling system with larger radiator
• Modified suspension with Tenneco/Rancho four-inch lift package and Rancho reservoir shocks
• Re-trimmed interior with brushed metal accents and trim
• Front racing seats with five-point safety harnesses and weather-resistant seat material
• Simpson window safety net
• Washable rubber floor covering replaces carpeting
• Navigation radio system
• Off-road integrated display gauge package with compass, inclinometer, altimeter and timer
• Auxiliary performance gauges
• Auxiliary 20-gallon fuel tank
• Second-row seats deleted
• Cargo-area spare tire mount

GM Accessories (production and concept)

• Rocker protectors
• Underbody shield
• Side-window weather deflector
• Roadside assistance package
• First-aid kit
• Hitch receiver cover
• Body-color grille