Buick Regal TourX (2019) is 222 mm (8.74 inch) longer, 913 kg (2,013 lbs) lighter and has 113 liters (3.99 ft3) bigger cargo space than Mercedes G-Class (2015).
Mercedes G-Class (2015) is 5 mm (0.20 inch) wider and 471 mm (18.54 inch) higher than Buick Regal TourX (2019).