Heated/Cooled Leather Seats, Navigation, Bed Liner, Premium Sound System, Back-Up Camera, 4x4, Turbo Charged, Alloy Wheels, ENGINE, DURAMAX 6.6L TURBO DIESEL V8, B20-DIESEL COMPATIBLE, DRIVER ALERT PACKAGE, Trailer Hitch CLICK ME!<br /><br />KEY FEATURES INCLUDE<br />Leather Seats, 4x4, Heated Driver Seat, Cooled Driver Seat, Back-Up Camera, Premium Sound System, Onboard Communications System, Trailer Hitch, Aluminum Wheels, Remote Engine Start, Dual Zone A/C, WiFi Hotspot, Heated Seats, Heated Leather Seats, Heated/Cooled Seats Keyless Entry, Privacy Glass, Steering Wheel Controls, Alarm, Electronic Stability Control. <br /><br />OPTION PACKAGES<br />ENGINE, DURAMAX 6.6L TURBO DIESEL V8, B20-DIESEL COMPATIBLE (397 hp [296.0 kW] @ 3000 rpm, 765 lb-ft of torque [1032.8 N-m] @ 1600 rpm) Includes (K40) exhaust brake. TRANSMISSION, ALLISON 1000 6-SPEED AUTOMATIC, ELECTRONICALLY CONTROLLED with overdrive, electronic engine grade braking and tow/haul mode, DRIVER ALERT PACKAGE includes Lane Departure Warning, Forward Collision Alert, and Safety Alert Seat, LPO, CARGO BOX RETRACTABLE SIDE ASSIST STEP, AUDIO SYSTEM, 8 DIAGONAL COLOR TOUCH SCREEN NAVIGATION WITH INTELLILINK, AM/FM/SIRIUSXM WITH USB PORTS auxiliary jack, SD card slot, Bluetooth® streaming audio for music and most phones, hands-free smartphone integration, Pandora Internet radio and voice-activated technology for radio and phone (STD). GMC Denali with ONYX BLACK exterior and COCOA / DUNE DENALI interior features a 8 Cylinder Engine with 397 HP at 3000 RPM*. <br /><br />EXPERTS ARE SAYING<br />The 2015 GMC Sierra 2500HD manages to provide a comfortable ride along with its strong work capacity, thanks to its stiff frame and a suspension that can not only handle higher loads but also smooth out rough roads. -Edmunds.com. <br /><br />MORE ABOUT US<br />Here at Colonial Buick GMC, we work hard to find you the perfect new or used car, truck, SUV, or crossover that best fits your needs. Looking for parts or need an