The all-new 2007 Yukon lineup landed in showrooms in early 2006. Several of the standard and optional engines in the lineup offer fuel-saving Active Fuel Management, which shuts off half of the engine’s cylinders in certain driving conditions. The Yukon Denali and Yukon XL Denali – the flagships of the GMC’s Yukon line – offer unique exterior design and interior features, as well as an all-new 6.2-liter, 380 horsepower V-8 engine.