2015 GMC Sierra Denali HD, 2015 Chevrolet Silverado HD Unveiled

General Motors Executive Chief Engineer Jeff Luke introduces the 2015 GMC Sierra Denali HD (left) and the 2015 Chevrolet Silverado HD Thursday, September 26, 2013 at the State Fair of Texas in Dallas, Texas. The 2015 heavy-duty pickups feature new cabs and interiors, and segment-leading capabilities across the range including the highest payload – 7,374 pounds – and the highest conventional trailering rating – 19,600 pounds. (Photo by Mike Stone for General Motors)