GMC Yukon XL (2015) is 1028 mm (40.47 inch) longer, 114 mm (4.49 inch) wider and has 1505 liters (53.15 ft3) bigger cargo space than Mercedes G-Class (2020).
Mercedes G-Class (2020) is 79 mm (3.11 inch) higher and 3219 kg (7,097 lbs) lighter than GMC Yukon XL (2015).