The GMC Yukon XL is a large 8-passenger SUV that offers excellent interior room, generous storage space, and strong towing capacity. Well-equipped models like the top-of-the-line Denali version provide premium features that compete with more expensive luxury SUVs. The Yukon XL offers seating and cargo capacity similar to the Chevrolet Suburban while providing a lower-cost alternative to the Cadillac Escalade.