The GMC is a brand of vehicles, cars, and trucks that has constantly and continually been described as the “Professional Grade”. At present, this vehicle brand is the truck manufacturing division of the General Motors Corporation, and this brand also manufactures and markets various kinds of trucks. These trucks could actually range from the light duty pickup trucks to sport utility vehicles to medium duty commercial trucks. Some models that are sold under this brand include the GMC Sierra, the GMC Savana, the GMC Safari, the GMC Envoy, and the GMC Yukon. Read more.