CARFAX One-Owner. Clean CARFAX. Quicksilver Metallic 2015 GMC Yukon XL Denali RWD 8-Speed Automatic EcoTec3 6.2L V8 Awards: * 2015 Brand Image Awards Fields Matters Because You Matter. Reviews: * Strong V8 power stout towing capacity big cargo capacity available nine-passenger seating extremely quiet highway ride high-quality cabin. Source: Edmunds