GMC Sierra 2500HD for sale in Columbia, the All-Terrain HD concept skips the longer bed of the production truck for a 5'8" short bed, about the size of the bed on a GMC Sierra 1500 crew cab. Power is from the new 2500's Duramax 6.6L diesel engine making 397 horsepower and a stunning 765 pound-feet of torque. (For comparison, a Cadillac CTS-V's supercharged V8 makes a paltry 551 horsepower.) This engine is about 11% more fuel efficient than the outgoing 2010 Duramax--while it still won't be besting the mileage of the upcoming 2012 Buick LaCrosse with eAssist, a LaCrosse also can't tow up to 13,000 pounds.
Power goes to the ground through all four wheels, of course, with each of the 20-inch wheels wrapped in 35-inch BFGoodrich tires. A composite underbody protection system keeps the driveline, fuel tank, and other components underneath safe. The required center high-mounted stop lamp in the rear, as well as clearance lamps in the front, are hidden in the top edges of the window glass for a smooth look, while power deployable assist steps provide easy access to both the cab and to the bed, which features a 110V power outlet and air compressor in compartments protected by a circuit board-styled composite bed liner.
Inside, the All-Terrain HD features the premium interior you expect from a GMC, including two-tone dark gray leather seats, stainless steel mesh and satin-metal accents, and a new navigation radio packing an 80-gigabyte hard drive--no more nav discs! (This radio is a preview of next-generation navigation systems you'll see in GMC trucks and SUVs in the future.)
What do you think, Columbia? Will enough people love the Sierra All-Terrain HD concept to see a production version arrive at your Columbia GMC dealer?