BMW 8 Series (G16) (2019) is 1083 mm (42.64 inch) longer, 157 mm (6.18 inch) wider and has 180 liters (6.36 ft3) bigger cargo space than BMW i3 (2020).
BMW i3 (2020) is 171 mm (6.73 inch) higher and 649 kg (1,431 lbs) lighter than BMW 8 Series (G16) (2019).