Cadillac CT6 (2016) is 513 mm (20.20 inch) longer and 814 kg (1,795 lbs) lighter than Mercedes G-Class (2018).
Mercedes G-Class (2018) is 51 mm (2.01 inch) wider, 498 mm (19.61 inch) higher and has 234 liters (8.26 ft3) bigger cargo space than Cadillac CT6 (2016).