GMC Yukon XL (2015) is 1041 mm (40.98 inch) longer, 155 mm (6.10 inch) wider, 231 mm (9.09 inch) higher and has 1822 liters (64.34 ft3) bigger cargo space than Mercedes GLC-Class (2020).
Mercedes GLC-Class (2020) is 3587 kg (7,908 lbs) lighter than GMC Yukon XL (2015).