Spanning 225.2 inches in length and possessing an extended wheelbase of 134.1-inches, the 2021 GMC Yukon XL brings even more cabin room and cargo space to an already massive and commodious vehicle. Typically, large three-row SUVs are condemned by cramped third-row seats and small cargo areas. The Yukon, even in regular form, stands out for the expanse of third-row passenger room it supplies and ample cargo space it manages to retain at the same time. There must be a fair market of buyers out there that still need more, however, as the Yukon XL SUV isn’t the only extra-large, three-row SUV out there, with the Ford Expedition Max, Chevrolet Suburban, and even the Lincoln Navigator L providing similar accommodations for prosperous American families. Powering the super-sized passenger car is a capable355-horsepower V8 that, though a brawnier 420-hp V8 or well-balanced 277-hp turbo-diesel are available. Whatever the case, the Yukon XL SUV is a pleasant family cruiser and pragmatic freight carrier. It’s extensively outfitted with creature comforts and conveniences and crammed with impressive driver-assist technologies from the outset. Is the extra room really worth the upshot in price, though?