The Chevrolet Silverado, and its mechanically identical cousin the GMC Sierra, are a series of full-size and heavy-duty pickup trucks manufactured by General Motors and introduced in 1998 as the successor to the long-running Chevrolet C/K line. The Silverado name was taken from a trim level previously used on its predecessor, the Chevrolet C/K pickup truck from 1975 through 1998.
The heavy-duty trucks are informally referred to as "Silverado HD" (and Sierra HD), while the light-duty version is referred simply to as "Silverado" (and Sierra). Perennially one of the best-selling vehicles in the United States, almost 12 million Silverados have been sold since its introduction.
