The GMC TopKick C5500 (also known as the Chevrolet Kodiak) is a series of medium duty trucks produced by GMC. It was first introduced in 1981 and was in production until 2009. The last generation of the TopKick was produced from 2003 to 2009. It was purchasable with a four-wheel drive system, which was also used by the presidential state car of the United States - Cadillac One.