BMW 2 Series (2017) is 79 mm (3.11 inch) higher, 518 kg (1,142 lbs) lighter and has 40 liters (1.41 ft3) bigger cargo space than BMW 8 Series (G14) (2020).
BMW 8 Series (G14) (2020) is 402 mm (15.83 inch) longer and 128 mm (5.04 inch) wider than BMW 2 Series (2017).