The Cadillac XT6 starts below $54,000, putting it squarely in contention with Audi Q7, while undercutting the BMW X5 by a considerable margin. Three-row SUVs are a growing segment with automakers realizing that buyers are want more options and flexibility in their people and cargo hauling. The Cadillac XT6 looks to fill this void by offering plenty of interior space, an efficient V6 and high levels of luxury.