CARFAX One-Owner. Onyx Black 2026 GMC Sierra 3500HD Denali Ultimate Duramax 6.6L V8 Turbodiesel 4WD **Sunroof/Moonroof*, **Leather**, Backup Camera, Bluetooth, Automatic Headlights, Heated/Cooled Seats, Navigation, Apple Car Play, Push Button Start, Sierra 3500HD Denali Ultimate, 4D Crew Cab, Duramax 6.6L V8 Turbodiesel, 10-Speed Automatic, 4WD, Onyx Black, Alpine Umber Leather. Priced below KBB Fair Purchase Price! David Scott Lee Buck GMC: Family owned and operated since 1946. Now offering home delivery to area locations. Come see the Dealership of Choice for Crestview, Niceville, Shalimar, Ft. Walton Beach, Laurel Hill, Choctaw, Defuniak Springs, Freeport, Destin, Milton, Pace and surrounding areas. Now offering sales and service for multiple makes and models including: Ford, Honda, Jeep, Dodge, Chrysler, Tesla, Cadillac, Lincoln, Kia, Mercedes Benz, Hyundai, Subaru, Nissan, Audi, Chevrolet, BMW, Lexus, Acura, INFINITI, Prosche, Mitsubishi, Land Rover, Toyota, Volkswagen, Volvo. We offer an Exclusive Unlimited Mile Lifetime Warranty on all new vehicles and most pre-owned vehicles. Come see one of our Certified Sales Specialists and find out how you can become a Customer for Life at David Scott Lee Buick GMC. Please contact our Customer Service Team @ 850-683-8411.