General Motors Company, also known as GM, is a United States-based automobile manufacturer with operations spread overseas and brands that include Buick, Cadillac, Chevrolet, GMC, Holden, Hummer, Opel, Pontiac, Saturn, Saab and Vauxhall. GMC, as a trade name, was first exhibited in 1912 at the New York Auto Show. Today, GMC is renowned as the truck-building division of General Motors. General Motors Company was founded in 1908, and soon made a name for itself as one of the largest car manufacturers in the world. In 1909, General Motors acquired the Rapid Motor Vehicle Company of Pontiac, Michigan, the predecessor of GMC Truck. During the 1920s and 1930s, General Motors bought out Yellow Coach, created Greyhound bus lines, started transport with buses, and tried to buy out streetcar companies. GM formed United Cities Motor Transit in 1932.

GMC Acadia
The 2008 GMC Acadia ($29,225-$38,280) is a crossover with eight-passenger seating, available in SLE and SLT trims, with front-wheel-drive or all-wheel-drive. The only available powertrain is a 275-hp 3.6-liter V6 engine and 6-speed automatic transmission. Maximum towing capacity is 4500 lb.

GMC Canyon
The 2008 GMC Canyon ($14,235-$28,385) is a compact pickup truck offered in regular and extended cab body styles, in Work, SL, and SLE trims. All trims are available with rear-wheel-drive or 4-wheel-drive. Canyons come with a 185-hp 2.9-liter 4-cylinder engine. Standard on 4WD Crew Cabs and optional on others is a 242-hp 3.7-liter 5-cylinder engine. The 4-cylinder engine gets a manual or automatic transmission, while 5-cylinder versions get an automatic.

GMC Envoy
The 2008 GMC Envoy ($26,080-$40,235) is a five-passenger midsize SUV available in SLE, SLT and Envoy Denali trim levels. Base versions get a 285-hp 4.2-liter inline 6-cylinder engine. Maximum towing capacity is 6600 lb. All Envoys have a 4-speed automatic transmission and are available with rear-wheel-drive or 4-wheel-drive

GMC Savana
The 2008 GMC Savana ($21,645-$31,819) full-size van comes in half-ton (1500) and 1-ton (3500) configurations. The extended-wheelbase version (155-inch) is available only on the 3500. There are two trim levels - LS and LT. LS models are suitable for fleet service. The standard engine is a 5.3-liter V8 making 301 horsepower and 325 lb-feet of torque. A 6.0-liter V8, rated at 323 hp and 373 lb-ft of torque, is standard on 3500s. All 1500 models get a four-speed automatic that sends power to the rear wheels, while 3500s get a heavy-duty version of that transmission.

GMC Sierra 1500
The 2008 GMC Sierra ($15,840-$42,120) is offered in regular, extended, and crew cab body styles. The Sierra offers two interiors, dubbed "Pure Pickup" and "Luxury inspired." Available engines depend on cab/bed configuration - a 195-hp 4.3-liter V6, 295-hp 4.8-liter V8, 315-hp 5.3-liter V8 and 367-hp 6.0-liter V8. Some versions of the 5.3 V8 can run on E85 ethanol fuel. All these engines team with a 4-speed automatic transmission.

GMC Sierra 2500HD
Sierra Classic HDs ($21,825-$41,090) come in 3/4-ton 2500 and WT (Work Truck), SLE, and top-line SLT trims. Three cab types are available: 2-dr regular cab, a 4-dr extended cab, and a crew cab with four doors. The base engine is a 6.0-liter gasoline V8 with 300 hp; a 330-hp 8.1-liter gas V8 is optional. The base V8 teams with a 5-speed manual transmission or an optional 4-speed automatic with Tow/Haul mode. The larger engines use a 6-speed manual or optional 5-speed automatic.

GMC Sierra 3500HD
Sierra Classic HDs come in 1-ton 3500 series ($27,885-$40,965) in WT (Work Truck), SLE and top-line SLT trims. Three cab types are available: 2-door regular cab, a 4-door extended cab, and a crew cab with four doors. The base engine is a 6.0-liter gasoline V8 with 300 hp; a 330-hp 8.1-liter gas V8 is optional. The base V8 teams with a 5-speed manual transmission or an optional 4-speed automatic with Tow/Haul mode. The larger engines use a 6-speed manual or optional 5-speed automatic

GMC Yukon
The 2008 GMC Yukon ($34,675-$44,420) come as Yukon and Yukon XL models and come in SLE, SLT, and luxury Denali trims. All are available with rear-wheel-drive. Standard on 2WD Yukon SLE is a 295-hp 4.8-liter V8 engine with a 4-speed automatic.

GMC Yukon Denali
Yukon and Yukon XL ($47,780-$52,175) come in SLE, SLT, and luxury Denali models. The Yukon Denali has specific styling and all-wheel-drive, with a 380-hp V8 and 6-speed automatic transmission. The Denali model can seat up to eight passengers.

GMC Yukon Hybrid
The 2008 GMC Yukon ($50,045-$52,855) adds a gas/electric hybrid model. Yukon Hybrids have a 320-hp 6.0-liter V8 that teams with an electric motor. The Hybrid can run on either power source, depending on driving dynamics and require no plug-in charging. Hybrids use a continuously variable transmission (CVT).

GMC Yukon XL
Yukon XLs ($37,755-$47,815) have a 320-hp 5.3-liter V8. Optional on XL is a 366-hp 6.0-liter V8. The 5.3- and 6.0-liter engines have GM's Active Fuel Management cylinder deactivation and are coupled with an automatic transmission.