Cadillac XT4 (2021) is 66 mm (2.60 inch) wider, 188 mm (7.40 inch) higher, 115 kg (254 lbs) lighter and has 117 liters (4.13 ft3) bigger cargo space than Mercedes CLS-Class (2018).
Mercedes CLS-Class (2018) is 341 mm (13.43 inch) longer than Cadillac XT4 (2021).