2024 GMC Sierra 2500HD AT4. Onyx Black 2024 GMC Sierra 2500HD AT4 4WD 10-Speed Automatic 6.6L V8 10-Speed Automatic, 4WD, Jet Black w/Kalahari Accents w/Perforated Leather-Appointed Front Seat Trim, Bluetooth Hands Free Calling, ONE OWNER CLEAN CARFAX NO ACCIDENTS,... via AutoRevolution