KBB.com Brand Image Awards. Boasts 20 Highway MPG and 14 City MPG! This GMC Yukon XL boasts a Gas V8 6.2L/378 engine powering this Automatic transmission. WHEELS, 20 X 9 (50.8 CM X 22.9 CM) ULTRA BRIGHT MACHINED ALUMINUM (STD), TRANSMISSION, 8-SPEED AUTOMATIC (STD), TIRES, P275/55R20 ALL-SEASON, BLACKWALL (STD).* This GMC Yukon XL Features the Following Options *OPEN ROAD PACKAGE includes additional 9 months of SiriusXM Radio and NavTraffic service, (CF5) power sunroof, (U42) rear seat entertainment system and on SLT (IO6) Audio system with navigation , SUNROOF, POWER, TILT-SLIDING with express-open and close and wind deflector, SEATS, SECOND ROW BUCKET, POWER RELEASE (STD), SEATS, FRONT BUCKET WITH PERFORATED LEATHER-APPOINTED heated and cooled seat cushions, 12-way power driver and passenger seat includes 6-way power cushions, driver seat 2-position memory, 4-way power lumbar control and power recline (STD), REAR AXLE, 3.23, ONYX BLACK, HEAD-UP DISPLAY Includes digital multi-function readouts, ENTERTAINMENT SYSTEM, REAR SEAT BLU-RAY/DVD. Includes four 2-channel wireless infrared headphones, rear seat audio controls, USB port and SD card slot, ENGINE, 6.2L ECOTEC3 V8 with Active Fuel Management, Direct Injection and Variable Valve Timing, includes aluminum block construction (420 hp [313 kW] @ 5600 rpm, 460 lb-ft of torque [624 N-m] @ 4100 rpm) (STD), DVD SCREEN, THIRD ROW.* Stop By Today *Test drive this must-see, must-drive, must-own beauty today at Nimnicht Buick GMC, 11503 Philips Hwy, Jacksonville, FL 32256.