Cadillac XT4 (2019) is 48 mm (1.89 inch) wider, 137 mm (5.39 inch) higher, 400 kg (882 lbs) lighter and has 137 liters (4.84 ft3) bigger cargo space than Mercedes S-Class (2019).
Mercedes S-Class (2019) is 646 mm (25.43 inch) longer than Cadillac XT4 (2019).