GMC Yukon XL (2021) is 1064 mm (41.89 inch) longer, 167 mm (6.57 inch) wider, 284 mm (11.18 inch) higher and has 2306 liters (81.44 ft3) bigger cargo space than Mercedes GLC-Class (2014).
Mercedes GLC-Class (2014) is 455 kg (1,003 lbs) lighter than GMC Yukon XL (2021).