Buick Regal TourX (2020) is 66 mm (2.60 inch) higher, 538 kg (1,186 lbs) lighter and has 110 liters (3.88 ft3) bigger cargo space than Mercedes CL-Class (2014).
Mercedes CL-Class (2014) is 109 mm (4.29 inch) longer and 10 mm (0.39 inch) wider than Buick Regal TourX (2020).