Cadillac CT6 (2017) is 491 kg (1,082 lbs) lighter than Mercedes S-Class (2020).
Mercedes S-Class (2020) is 61 mm (2.40 inch) longer, 19 mm (0.75 inch) wider, 17 mm (0.67 inch) higher and has 67 liters (2.37 ft3) bigger cargo space than Cadillac CT6 (2017).