As a cousin of the Chevrolet Suburban and Tahoe, the GMC Yukon naturally offers the same powertrain lineup including a pair of gasoline V8 engines (5.3L and 6.2L) along with a 3.0-litre turbo-diesel V6 that generates 277 horsepower and 460 pound-feet of torque. The transmission is a 10-speed automatic. In addition to the luxurious Denali model, customers can now select the Yukon AT4, which is full of rugged attributes aimed at off-road driving enthusiasts.