BMW 8 Series (G14) (2018) is 808 mm (31.81 inch) longer, 168 mm (6.61 inch) wider and has 24 liters (0.85 ft3) bigger cargo space than Hyundai i20 (2015).
Hyundai i20 (2015) is 135 mm (5.31 inch) higher and 863 kg (1,903 lbs) lighter than BMW 8 Series (G14) (2018).