Cadillac CT6 (2017) is 515 mm (20.28 inch) longer and 814 kg (1,795 lbs) lighter than Mercedes G-Class (2020).
Mercedes G-Class (2020) is 51 mm (2.01 inch) wider, 496 mm (19.53 inch) higher and has 234 liters (8.26 ft3) bigger cargo space than Cadillac CT6 (2017).