Detroit, Michigan – General Motors will unveil the GMC Sierra All Terrain HD concept at the North American International Auto Show in Detroit. Based on the new 2011 Sierra Heavy-Duty pickup truck, the Sierra All Terrain features an enhanced suspension and unique body dimensions, along with premium details designed to enable greater access to off-road destinations, the company said.
“The Sierra All Terrain HD concept takes GMC’s outstanding new HD platform to the next level, marries it to the legendary Duramax diesel/Allison transmission, and provides a heavy-duty expression of GMC’s premium All Terrain package,” said Lisa Hutchinson, product marketing director of GMC. “It delivers the exceptional capabilities of the Sierra HD – hauling, towing and performance – and applies them to the toughest driving environments. It’s the ultimate professional-grade tool for construction crews, ranchers and adventurers whose activities aren’t limited by where the pavement ends.”
The Sierra All Terrain HD features a unique Crew Cab body with short box configuration, with a wider track and greater ground clearance than the production truck, custom front upper and lower control arms, specially-constructed Fox off-road shocks with remote fluid reservoirs, electronic front stabilizer bar disconnection, front and rear jounce shocks, full composite underbody protection, and 35-inch-tall BF Goodrich KM2 mud terrain tires on 20-inch aluminum wheels.