Audi RS 5 (2015) is 188 mm (7.40 inch) longer and 63 mm (2.48 inch) wider than Mazda 3 (Hatchback) (2016).
Mazda 3 (Hatchback) (2016) is 86 mm (3.39 inch) higher, 533 kg (1,175 lbs) lighter and has 24 liters (0.85 ft3) bigger cargo space than Audi RS 5 (2015).
