The Cadillac XT6 competes directly with the Audi Q7, while undercutting the BMW X5 by a considerable margin. Three-row SUV's are a growing segment in America with automakers realizing that buyers need more options beyond enormous, full-sized truck-based vehicles and minivans. The Cadillac XT6 looks to fill this void by offering plenty of interior space, combined with a relatively efficient V6 and high levels of luxury.