GMC Sierra 2500 4dr Long Bed

As of 2006, the GMC Sierra line of pickup trucks was the second-best selling vehicle in the United States, behind only the Ford F-Series pickup truck. GMC has used the 'Sierra' moniker as the higher-level trim designation on its vehicles up until 1988. In 1988, GMC decided to use the 'Sierra' name on all GMC pickup trucks, though the 'C/K' nomenclature was continued through 1999. The 'C' designation indicated that the truck had rear-wheel drive while the 'K' designation indicated four-wheel drive. Both Chevrolet and GMC dropped the "C" and "K" designations in 1999. The GMC Sierra trucks have been fundamentally equivalent for their entire history. The Sierra 4 door long bed trucks have more luxury options than their counterparts on the market. There are some trim and option variations as well. Early models included variations in the engine and equipment, but the present differences are slight. In 2001, GMC created an upscale version of its Sierra called the Sierra C3. It used all-wheel drive and included the 6.0 L Vortec 6000 V8 rated at 325 hp (242 kW) with other upscale equipment. For 2002, the name was changed to Sierra Denali, but the specification remained essentially the same except for the addition of Quadrasteer. The Sierra Denali was initially equipped with Delphi's Quadrasteer system as standard equipment. It was a 4-wheel steering system that greatly reduced the truck's turning radius, but improved lane changing while towing. General Motors dropped Quadrasteer from its entire lineup after 2005 due to poor sales of this expensive option. For the 2007 model year, the Sierra Denali shares the same bullet grill from the other Denali models, and also has the same dash as the '07 SUV's. It appears that General Motors is doing an excellent job of remaining fresh and innovative in a segment that seems to be stagnant.