This GMC Sierra 1500 boasts a Gas V8 5.3L/325 engine powering this Automatic transmission. ENGINE, 5.3L ECOTEC3 V8 WITH ACTIVE FUEL MANAGEMENT, DIRECT INJECTION, Windows, power with driver express up and down and express down on all other windows, Wheels, 17' x 8' (43.2 cm x 20.3 cm) premium painted aluminum, bright machined. This GMC Sierra 1500 Features the Following Options Wheelhouse liners, rear, Visors, driver and front passenger illuminated vanity mirrors, Transmission, 6-speed automatic, electronically controlled with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking, Transfer case, 4WD, active electronic Autotrac with rotary dial control (Included with 4WD models only.), Tires, P255/70R17 all-season, blackwall, Tire, spare P255/70R17 all-season, blackwall (Included and only available with (RBZ) P255/70R17 all-season, blackwall tires.), Tire Pressure Monitoring System (does not apply to spare tire), Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door, Tailgate, locking utilizes same key as ignition and door, Tailgate, EZ-Lift and Lower. The Experts' Verdict... As reported by The Manufacturer Summary: The GMC Sierra 1500 possesses chiseled features and distinct lines that not only make it look imposing, but increase how aerodynamic it is as well. In front, between the projector beam headlights, there is an incredibly striking and enormous chrome grille. While driving, it takes in a large portion of the air for cooling the engine, and lets the remainder glide across the truck. It is complimented by a bumper made of sculpted steel, a strong angled hood, and bulging fender flares. The changes made to the truck body, and the resulting improvements in air flow, add up to a quieter cabin for you and your passengers. Plus, its new hydraulic body mounts help mitigate vibrations to give you a smoother and more comfortable ride. The seats utilize a new design for lasting comfort, and reduced fatigu