BMW 8 Series (G15) (2018) is 783 mm (30.83 inch) longer, 207 mm (8.15 inch) wider and has 140 liters (4.94 ft3) bigger cargo space than Mazda 2 (2016).
Mazda 2 (2016) is 154 mm (6.06 inch) higher and 879 kg (1,938 lbs) lighter than BMW 8 Series (G15) (2018).