BMW 8 Series (G15) (2018) is 53 mm (2.09 inch) wider than Honda Accord (2016).
Honda Accord (2016) is 90 mm (3.54 inch) longer, 123 mm (4.84 inch) higher, 458 kg (1,010 lbs) lighter and has 27 liters (0.95 ft3) bigger cargo space than BMW 8 Series (G15) (2018).
