Although General Motors introduced its first pickup in 1930, the term Sierra was a designation used only to detail
the higher level trim for the GMC C/K pickup trucks from 1987 through 1999. GMC "C" pickups were rear-wheel drive
while "K" pickups were four-wheel drive. Both of the "C" and "K" designation were dropped in 1999. In 1999, the GMC
Sierra was born, and was marketed as more luxurious than its brother the Chevrolet Silverado.
There have been a number of models for the GMC Sierra: 1500, 1500HD, 2500, 2500HD, 3500, and 3500HD. The current
GMC Sierra model line just consists of the 1500, 2500HD, 3500HD. In 2007, the GMC Sierra was redesigned with a new
exterior, interior, frame, suspension, and power increases on certain engines. The GMC Sierra is a vehicle full of
class and toughness that will continue to be a mainstay in the pickup market.