Audi A5 Coupe (2019) is 399 mm (15.71 inch) longer and 79 mm (3.11 inch) wider than Mazda 6 Atenza (2018).
Mazda 6 Atenza (2018) is 159 mm (6.26 inch) higher, 462 kg (1,019 lbs) lighter and has 193 liters (6.82 ft3) bigger cargo space than Audi A5 Coupe (2019).
