Mazda 6 Atenza (2020) is 26 mm (1.02 inch) wider, 137 mm (5.39 inch) higher, 139 kg (306 lbs) lighter and has 190 liters (6.71 ft3) bigger cargo space than Mercedes C-Class (Coupe) (2014).
Mercedes C-Class (Coupe) (2014) is 198 mm (7.80 inch) longer than Mazda 6 Atenza (2020).