Cadillac XTS (2019) is 77 mm (3.03 inch) longer, 87 mm (3.43 inch) higher, 126 kg (278 lbs) lighter and has 109 liters (3.85 ft3) bigger cargo space than Mercedes S-Class Coupe (2017).
Mercedes S-Class Coupe (2017) is 45 mm (1.77 inch) wider than Cadillac XTS (2019).