Billed as the largest of the brand’s family of SUVs, the 2007 GMC Yukon XL is a nine-passenger truck with 137.4 cubic feet of cargo room. Buyers can choose from two trims – XL and XL Denali – and either rear- or four-wheel-drive capability. Based on the Chevrolet Suburban, the Yukon XL and XL Denali models are available to buyers looking for more brand cachet and an added touch of luxury, but aren’t quite ready for the flash and price of the Cadillac Escalade, another ride that shares its platform with the Chevy.