Cadillac CTS (2018) is 39 mm (1.54 inch) higher, 239 kg (527 lbs) lighter and has 47 liters (1.66 ft3) bigger cargo space than Mercedes S-Class Coupe (2015).
Mercedes S-Class Coupe (2015) is 238 mm (9.37 inch) longer and 15 mm (0.59 inch) wider than Cadillac CTS (2018).