BMW 8 Series (G14) (2019) is 383 mm (15.08 inch) longer and 106 mm (4.17 inch) wider than Mazda 3 (Hatchback) (2014).
Mazda 3 (Hatchback) (2014) is 116 mm (4.57 inch) higher, 623 kg (1,373 lbs) lighter and has 14 liters (0.49 ft3) bigger cargo space than BMW 8 Series (G14) (2019).
