Audi R8 Spyder (2020) is 147 mm (5.79 inch) wider than Mazda 3 (Hatchback) (2018).
Mazda 3 (Hatchback) (2018) is 34 mm (1.34 inch) longer, 200 mm (7.87 inch) higher, 395 kg (871 lbs) lighter and has 138 liters (4.87 ft3) bigger cargo space than Audi R8 Spyder (2020).