Mazda 6 Atenza (2017) is 109 mm (4.29 inch) higher, 121 kg (267 lbs) lighter and has 180 liters (6.36 ft3) bigger cargo space than Mercedes A-Class (2015).
Mercedes A-Class (2015) is 17 mm (0.67 inch) longer and 12 mm (0.47 inch) wider than Mazda 6 Atenza (2017).