GMC Yukon XL (2018) is 885 mm (34.84 inch) longer, 205 mm (8.07 inch) wider, 215 mm (8.46 inch) higher and has 1252 liters (44.21 ft3) bigger cargo space than Subaru Outback (2019).
Subaru Outback (2019) is 1125 kg (2,480 lbs) lighter than GMC Yukon XL (2018).
