BMW 8 Series (G16) (2020) is 622 mm (24.49 inch) longer, 137 mm (5.39 inch) wider and has 113 liters (3.99 ft3) bigger cargo space than Mazda 3 (Hatchback) (2020).
Mazda 3 (Hatchback) (2020) is 33 mm (1.30 inch) higher and 552 kg (1,217 lbs) lighter than BMW 8 Series (G16) (2020).