Mazda 6 Atenza (2017) is 100 mm (3.94 inch) higher, 171 kg (377 lbs) lighter and has 41 liters (1.45 ft3) bigger cargo space than Mercedes C-Class (2017).
Mercedes C-Class (2017) is 411 mm (16.18 inch) longer and 42 mm (1.65 inch) wider than Mazda 6 Atenza (2017).