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.

However, before this brand became a part of the whole General Motors Corporation, GMC has been known as the Grabowski Motor Company. This company is the manufacturer of the earliest commercial trucks in the automotive business. Come 1909, General Motors then purchased this line of vehicles. Later, this then became the basis of the present line of vehicles that we know today. In 1912, the trucks that were manufactured by the General Motors Company was known to be the "GMC Truck", however come the year 1996, these vehicles then carried the name and brand "GMC". At present times, this line of vehicles produce and craft medium duty trucks, stylish light duty pickup trucks, vans, and sport utility vehicles.

One of the vehicles that run under the GMC brand and mark is the GMC Sierra. The latest vehicle model has been redesigned just for the year 2006. The newest vehicle boasts of new and improved features for its exterior and interior. It also sports a bolder look for its front end. The interior of the GMC Sierra has an improved function and appearance. It also has brakes that received the latest upgrades. This vehicle offers an array of the best and advanced engineering features among its segment, thus also providing a better and quality ride. As per functionality, this vehicle would not want to be left behind in the dust, for it has been given the capacity and capability to do hauling and towing.

This vehicle comes with either as a two wheel drive or a four wheel drive. It has also been manufactured in light duty models and medium duty power capacities. It as short bed and long bed bodies. There is also a choice between fenders or full width beds. The GMC Sierra also has an electronically controlled four wheel steering system, which is known as the Quadrasteer. This enhances the vehicle's ability to do high speed with great stability. There are many options that come along with this vehicle. The list includes a special full length console with concealed storage for a personal digital assistant or PDA, a cellular phone, a seven quart cooler, as well as a cooled or heated cup holder.