KBB.com Brand Image Awards. Only 58,371 Miles! Delivers 22 Highway MPG and 16 City MPG! This GMC Sierra 1500 delivers a Gas/Ethanol V8 5.3L/325 engine powering this Automatic transmission. TRANSMISSION, 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive and tow/haul mode. Includes Cruise Grade Braking and Powertrain Grade Braking (STD), TRAILER BRAKE CONTROLLER, INTEGRATED, TIRES, P275/55R20 ALL-TERRAIN, BLACKWALL.* This GMC Sierra 1500 Features the Following Options *DRIVER ALERT PACKAGE includes Lane Departure Warning, Forward Collision Alert, and Safety Alert Seat , REAR AXLE, 3.42 RATIO, ONYX BLACK, LICENSE PLATE KIT, FRONT, JET BLACK, PERFORATED LEATHER-APPOINTED FRONT SEAT TRIM, HILL DESCENT CONTROL, GVWR, 7200 LBS. (3266 KG), DENALI PREFERRED EQUIPMENT GROUP Includes Standard Equipment, Windows, power with driver express up and down and express down on all other windows, Window, power, rear sliding with rear defogger.* Expert Reviews!*As reported by KBB.com: The 2014 Sierras 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 Sierras 12,000-pound max tow rating is expected to be king at least for now.