The 2007 GMC Truck Sierra Classic 1500 Crew Cab 4WD is a 4-door, up to 6-passenger full size pickup, available in 4 trims, ranging from the SL Short Box to the SLT Short Box.

Upon introduction, the SL Short Box is equipped with a standard 4.8-liter, V8, 285-horsepower engine that achieves 15-mpg in the city and 19-mpg on the highway. The SLT Short Box is equipped with a standard 5.3-liter, V8, 295-horsepower, flexible fuel engine that achieves 15-mpg in the city and 19-mpg on the highway. A 4-speed automatic transmission with overdrive is standard on both trims.

The 2007 GMC Truck Sierra Classic 1500 Crew Cab 4WD is a carryover from 2006.