KBB.com Brand Image Awards. Delivers 22 Highway MPG and 16 City MPG! Carfax One-Owner Vehicle. This GMC Sierra 1500 boasts a Gas/Ethanol V8 5.3L/325 engine powering this Automatic transmission. ENGINE, 5.3L ECOTEC3 V8 WITH ACTIVE FUEL MANAGEMENT Direct Injection and Variable Valve Timing, includes aluminum block construction with Flex Fuel capability, capable of running on unleaded or up to 85% ethanol (355 hp [265 kW] @ 5600 rpm, 383 lb-ft of torque [518 Nm] @ 4100 rpm; more than 300 lb-ft of torque from 2000 to 5600 rpm) (STD), Windows, power with driver express up and down and express down on all other windows, Wheels, 18 x 8.5 (45.7 cm x 21.6 cm) polished aluminum.* This GMC Sierra 1500 Features the Following Options *Wheelhouse liners, rear, Visors, driver and front passenger illuminated vanity mirrors, Universal Home Remote, 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.), Tire, spare P265/70R17 all-season, blackwall, Tire Pressure Monitoring System (does not apply to spare tire), Tire carrier lock keyed cylinder lock that utilizes same key as ignition and door, Theft-deterrent system, unauthorized entry, Tailgate, locking utilizes same key as ignition and door.* The Experts' Verdict...*As reported by KBB.com: The 2014 Sierra's innovative powertrains and handsome aesthetics should appeal to longtime GMC fans and tempt buyers new to the brand. In just one of many mine is bigger battles in the half-ton truck market, the 2014 Sierra's 12,000-pound max tow rating is expected to be king - at least for now.