Cadillac XTS (2015) is 463 mm (18.23 inch) longer and 651 kg (1,435 lbs) lighter than Mercedes G-Class (2018).
Mercedes G-Class (2018) is 79 mm (3.11 inch) wider, 468 mm (18.43 inch) higher and has 158 liters (5.58 ft3) bigger cargo space than Cadillac XTS (2015).