Cadillac XTS (2016) is 105 mm (4.13 inch) longer, 87 mm (3.43 inch) higher, 133 kg (293 lbs) lighter and has 110 liters (3.88 ft3) bigger cargo space than Mercedes S-Class Coupe (2020).
Mercedes S-Class Coupe (2020) is 44 mm (1.73 inch) wider than Cadillac XTS (2016).