GMC Yukon XL (2017) is 415 mm (16.34 inch) longer, 178 mm (7.01 inch) wider and has 1685 liters (59.50 ft3) bigger cargo space than Mercedes G-Class (2015).
Mercedes G-Class (2015) is 64 mm (2.52 inch) higher and 111 kg (245 lbs) lighter than GMC Yukon XL (2017).