The "professional grade" brand is unveiling the 2011 GMC Sierra HD lineup at the NTEA Work Truck Show. While most of the technical specifications of GM's HD pickups are identical, GMC is adding a new high-end Sierra Denali HD model to its work truck lineup. The luxurious Sierra Denali will only be available as the crew cab four-wheel drive 2500 model with a choice of either the standard 360 horsepower / 380 pounds-feet of torque 6.0-liter V-8 gas engine or the class-leading 397 hp and 765 pounds-feet 6.6-liter Duramax V-8 turbodiesel. here To separate it visually to the rest of the Sierra HD trucks, the exterior of the Denali HD will feature a four-bar chrome grille along with body-color bumpers, chrome door handles, chrome accents and 18- and 20-inch polished forged aluminum wheels. As with other Denali models, the cabin will be unique with standard premium touches. It will include Denali-specific brushed aluminum trim, power-adjustable pedals, a Bose premium surround audio system and 12-way power seats. Along with an optional heated steering wheel, heated and cooled leather-appointed seating is available. The exterior will be offered in three colors: Black, Stealth Gray and White.
