With seating for up to nine people, substantial towing capacity and aspirational appeal, GM's biggest family haulers have in the past accounted for more than 60 percent of full-size SUV sales. GMC's version, the 2009 Yukon, bridges the gap between its Chevrolet Tahoe and Cadillac Escalade siblings with a lineup that includes a base model priced similarly to the Tahoe, as well as a distinctive Denali model that can approach Escalade prices when fully loaded. While the faithful Yukon continues to serve millions of families well, the impressive 2009 Yukon all but antiquates the previous generation, which seems light years apart in styling, quality and interior materials.