Hummer HX Concept

From GM press: With its unmistakable HUMMER design and a compact, go-anywhere driving ethic, the HUMMER HX concept challenges the hierarchy of the trail. HUMMER displayed the nimble, reconfigurable off-roader at the 2008 North American International Auto Show.

More compact than a HUMMER H3 - 81 inches (2,057 mm) wide, with a 103-inch wheelbase (2,616-mm) - the HX concept is an open-air, two-door off-road vehicle that packs the off-road acumen for which HUMMER has become legendary, along with an easily convertible body that acclimates to varied trail conditions, cargo needs or passenger whims. Its design is based on the ideas developed by a trio of young designers who are new to the HUMMER studio.

The HX offers an open-air driving experience via a pair of removable roof panels above the driver and front passenger, and a modular, removable rear roof assembly. With the roof panels and roof assembly removed, the HX is transformed into a true convertible.

Easy removal of the roof panels and rear-roof assembly enables quick conversion from a closed vehicle to an open one. The HX also was designed with several roof assemblies, allowing this versatile vehicle to be configured as an SUT (with the roof assembly removed), a stylish slant-back or a traditional, wagon-like design that offers a bit more cargo space.

The HX was shown with a slant-back configuration, wearing a desert-inspired matte olive paint scheme, at the North American International Auto Show. Additional convertible features include:

Removable doors - easily removable pins in the exposed hinges allow the doors to be removed quickly - an appreciated feature of many serious off-roaders

Removable fender flares - attached with quarter-turn quick-release fasteners, the composite fender flares can be quickly removed for additional trail/rock clearance, or if the flare is damaged during off-road driving

A full-time 4WD system pulls the HX over, through and around off-road obstacles. It transfers torque to the front and rear axles, each of which is equipped with a locking differential. The torque meets the trail via custom 35-inch-tall off-road tires that are mounted on a set of custom, bead-lock-style wheels that have a two-tone appearance; dark-painted wheel centers complemented by silver-anodized outer rims.

A complete underbody armor kit, including a front skid plate, powetrain protection and more, protects the HX from wayward rocks and other potentially damaging objects. A power-operated winch is located in the front bumper, and the HX has recovery hooks mounted on the front and rear bumpers, just in case its help is required for wrangling others out of unfortunate off-road situations.

Motivation for the HX comes from an E85 FlexFuel 3.6L SIDI V-6 that is backed by a six-speed automatic transmission. The transmission is teamed with the 4WD system to offer exceptional low-speed traction and crawling capability. Four-wheel-disc brakes provide confident stopping power.

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