2013 GMC Sierra 2500HD Denali 4WD Allison 1000 6-Speed Automatic Duramax 6.6L V8 Turbodiesel THIS VEHICLE INCLUDES THE FOLLOWING FEATURES AND OPTIONS :Heavy-Duty Handling/Trailering Suspension Package, Allison 1000 6-Speed Automatic, 4WD, Ebony w/Perforated Leather-Appointed Seat Trim, 12-Way Power Driver Seat Adjuster, 12-Way Power Front Passenger Seat Adjuster, 18" Forged Polished Aluminum Wheels, 3.73 Rear Axle Ratio, 4-Wheel Disc Brakes, 7 Speakers, ABS brakes, Adjustable pedals, Air Conditioning, Aluminized Stainless-Steel Muffler & Tailpipe, AM/FM radio: SiriusXM, Auto-dimming door mirrors, Auto-dimming Rear-View mirror, Automatic temperature control, Bodyside moldings, Brake assist, Bumpers: body-color, CD player, Compass, Delay-off headlights, Driver door bin, Driver vanity mirror, Dual front impact airbags, Dual front side impact airbags, Electronic Stability Control, Emergency communication system, Front anti-roll bar, Front Bucket Seats, Front Center Armrest, Front dual zone A/C, Front fog lights, Front Power Full-Feature Reclining Bucket Seats, Front reading lights, Front wheel independent suspension, Fully automatic headlights, Garage door transmitter, Heated & Cooled Driver & Front Passenger Seats, Heated door mirrors, Heated front seats, Heated steering wheel, Illuminated entry, Leather steering wheel, Low tire pressure warning, Memory seat, MP3 decoder, Outside temperature display, Overhead airbag, Overhead console, Panic alarm, Passenger door bin, Passenger vanity mirror, Pedal memory, Perforated Nuance Leather-Appointed Seat Trim, Power door mirrors, Power driver seat, Power passenger seat, Power steering, Power windows, Radio data system, Radio: AM/FM Stereo w/MP3 Compatible 6CD Player, Rear reading lights, Rear seat center armrest, Rear step bumper, Rear window defroster, Remote keyless entry, Security system, SIRIUSXM Satellite Radio, Speed control, Split folding rear seat, Steering wheel mounted audio controls, Tachometer, Tilt steering wheel, Traction control, Trip computer, Turn signal indicator mirrors, USB Port, Variably intermittent wipers, Ventilated front seats, and Voltmeter. Allison 1000 6-Speed Automatic, 4WD, Ebony w/Perforated Leather-Appointed Seat Trim. Reviews: * If you require a vehicle that can transport over 10,000 pounds without breaking a sweat, the 2013 GMC Sierra HD deserves a spot on your short list. Furthermore, most prospective HD truck buyers who place a premium on luxury will find the Sierra HD Denali worth springing for. Source: KBB.com * Impressive hauling and towing capabilities; refined and quiet ride; solid build quality; responsive steering. Source: Edmunds