GMC’s all-new 2009 Yukon Denali Hybrid makes its world debut at the 2009 New York International Auto Show. It is a luxurious, full-size SUV that seats eight, tows up to 5,800 pounds (2,636 kg) and achieves an estimated 21 miles per gallon in city driving, thanks to the engineering excellence of the Yukon’s patented 2-mode hybrid system.