Onyx Black 2018 GMC Yukon XL Denali EcoTec3 6.2L V8 4WD 10-Speed Automatic with Overdrive Yukon XL Denali, 4D Sport Utility, EcoTec3 6.2L V8, 10-Speed Automatic with Overdrive, 4WD, Onyx Black, Jet Black Leather. Odometer is 23459 miles below market average!