Mazda 6 Atenza (2018) is 104 mm (4.09 inch) higher, 192 kg (423 lbs) lighter and has 51 liters (1.80 ft3) bigger cargo space than Mercedes CLA-Class (2017).
Mercedes CLA-Class (2017) is 355 mm (13.98 inch) longer and 10 mm (0.39 inch) wider than Mazda 6 Atenza (2018).