GMC Yukon XL (2014) is 503 mm (19.80 inch) longer, 11 mm (0.43 inch) wider, 101 mm (3.98 inch) higher and has 1492 liters (52.69 ft3) bigger cargo space than Mercedes GL-Class (2020).
Mercedes GL-Class (2020) is 114 kg (251 lbs) lighter than GMC Yukon XL (2014).