Midnight Amethyst Metallic 2016 GMC Yukon XL Denali Denali 4WD EcoTec3 6.2L V8 Recent Arrival! Awards: * 2016 KBB.com Brand Image Awards Reviews: * Strong V8 power stout towing capacity big cargo capacity available nine-passenger seating quiet highway ride high-quality cabin. Source: Edmunds 4WD.