BMW 8 Series (G14) (2018) is 469 mm (18.46 inch) longer and 76 mm (2.99 inch) wider than Kia Niro EV (2019).
Kia Niro EV (2019) is 221 mm (8.70 inch) higher, 200 kg (441 lbs) lighter and has 174 liters (6.14 ft3) bigger cargo space than BMW 8 Series (G14) (2018).