Cadillac CT6 (2020) is 251 kg (553 lbs) lighter than Mercedes S-Class (2018).
Mercedes S-Class (2018) is 18 mm (0.71 inch) longer, 19 mm (0.75 inch) wider, 17 mm (0.67 inch) higher and has 53 liters (1.87 ft3) bigger cargo space than Cadillac CT6 (2020).