Engine Options: Comes with a standard 355-horsepower 5.3L V8. A robust 420-horsepower 6.2L V8 or a 3.0L Duramax Turbo-Diesel are also available.Transmission: 10-speed automatic.Suspension: Denali Premium Suspension with Adaptive Ride Control. This acts like an intelligent shock absorber. It constantly reads the road. It adjusts stiffness to give you a smooth, luxury car ride.Towing: Up to 9,200 lbs with the standard V8. Seating: Luxurious perforated leather seating surfaces. The front seats are heated, ventilated, and power-adjustable.Design: Authentic open-pore wood trim and premium stitching details.Cabin: Heated leather-wrapped steering wheel and dual-zone automatic climate control.Tech: 12.3-inch digital gauge cluster and a Head-Up Display that projects information onto your windshield. Infotainment: 13.4-inch diagonal center touchscreen with built-in Google software. Includes wireless Apple CarPlay and Android Auto.Audio: Premium Bose Audio System.Safety: Includes GMC Pro Safety. This suite has Forward Collision Alert, Automatic Emergency Braking, Lane Keep Assist, and a Safety Alert Seat that vibrates to warn you of danger. It also has a 360-degree camera system for easy parking. Grille: Unique chrome Denali signature grille.Tailgate: GMC MultiPro Tailgate. This acts like a transformer. It has six different functions. For example, it folds down into a step, or becomes a bed extender.Wheels: Standard 20-inch chrome/bright machined aluminum wheels