GMC Yukon XL (2020) is 955 mm (37.60 inch) longer, 178 mm (7.01 inch) wider and has 1685 liters (59.50 ft3) bigger cargo space than Mercedes G-Class (2017).
Mercedes G-Class (2017) is 64 mm (2.52 inch) higher and 111 kg (245 lbs) lighter than GMC Yukon XL (2020).