BMW 8 Series (G14) (2020) is 374 mm (14.72 inch) longer and 106 mm (4.17 inch) wider than Mazda 3 (Hatchback) (2015).
Mazda 3 (Hatchback) (2015) is 116 mm (4.57 inch) higher, 629 kg (1,387 lbs) lighter and has 14 liters (0.49 ft3) bigger cargo space than BMW 8 Series (G14) (2020).