GMC Yukon XL (2021) is 856 mm (33.70 inch) longer, 180 mm (7.09 inch) wider, 223 mm (8.78 inch) higher and has 1592 liters (56.22 ft3) bigger cargo space than Subaru Tribeca (2018).
Subaru Tribeca (2018) is 644 kg (1,420 lbs) lighter than GMC Yukon XL (2021).