The GMC Yukon Denali is a full-size luxury SUV produced by General Motors. It is the top-of-the-line version of the GMC Yukon model. The Yukon Denali was introduced in 1999 as a special edition SUV that was both powerful and luxurious. It features a muscular 6.2L V8 engine, advanced electronic systems, luxurious exterior and interior styling, and an exclusive Denali trim package.