GMC Yukon XL (2015) is 698 mm (27.48 inch) longer, 115 mm (4.53 inch) wider, 71 mm (2.80 inch) higher and has 505 liters (17.83 ft3) bigger cargo space than Subaru Ascent (2021).
Subaru Ascent (2021) is 3678 kg (8,109 lbs) lighter than GMC Yukon XL (2015).