THIS… is a 2011 GMC Sierra 2500 Denali 4×4, finished in Onyx Black with an Ebony interior.This Sierra is equipped with the desirable Duramax turbodiesel V8 and Allison 6-speed automatic transmission. The attached Carfax history report shows no accidents or mileage discrepancies; it also shows that this truck has been registered in Arizona and Washington state since new. It came equipped with the Z71 Off-Road Suspension Package (off-road jounce bumpers, skid plates, Z71 decals), a locking rear differential, leather upholstery, heated and cooled front seats, power-adjustable pedals, dual-zone automatic climate control, a rearview camera, a navigation system, and more as detailed below. Modifications reported by the seller include 20-inch RBP wheels with 35-inch Nitto Trail Grappler tires, a custom exhaust system, a Banks Power intake, a Banks Power ECU tune, a Fabtech 6-inch lift kit, Fox shocks, an aftermarket front light bar, a Pioneer head unit with Apple CarPlay and Android Auto capability, and more as detailed below. The GMC Sierra Denali was marketed as the most luxurious version of GM’s trucks, offering not only a very long list of features as standard but also a distinct look from its siblings. It was seen as one of the first luxury-focused trucks in the market. Power comes from a 6.6-liter turbodiesel V8, which produces 397 horsepower and 765 lb-ft of torque in stock form. The modifications likely increase those figures, but a dyno sheet was not provided to confirm. Output is sent to the rear or all four wheels through an Allison 6-speed automatic transmission and a 2-speed transfer case.