Buick Regal TourX (2019) is 394 mm (15.51 inch) longer, 92 mm (3.62 inch) wider, 53 mm (2.09 inch) higher and has 269 liters (9.50 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2014).
Mercedes C-Class (Coupe) (2014) is 77 kg (170 lbs) lighter than Buick Regal TourX (2019).