Hummer H3R Off Road Concept, 2007

•  Hummer H3R Off Road Concept, 2007

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.

The 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