The company has built a concept GMC pickup truck all-terrain Sierra All Terrain HD based on the production version of GMC Sierra 2500HD. This car will be shown to visitors of the Detroit Motor Show 2011 in January, and his plans for mass production yet. From its standard counterpart, the concept Sierra All Terrain HD is different shorter wheelbase, but the extended track and increased by 76 mm ground clearance, which now amounts to 300 mm. In addition, pick-up stands a massive grille, bulging wheel arches, LED lights and 20-inch aluminum wheels, “shod” in the “toothy” 35-inch tires BFGoodrich KM2. Under the hood, the concept is 6.6-liter diesel V8 Duramax, issuing 397 hp and the phenomenal torque of 1037 Newton meters, is transmitted to the wheels through a 6-speed automatic transmission firm Allison. Driving suspension on GMC Sierra All Terrain HD is unchanged, but the pickup got advanced off-road firm Fox dampers with remote reservoirs, as well as an electronic system, with which the driver can switch off the front anti-roll bar. Photos interior concept pickup truck in the company are not provided, but the press release says that the interior include two-tone leather upholstery seats, chrome trim and a navigation system of the latest generation with a hard disk of 80 GB.