BMW 8 Series (G15) (2018) is 172 mm (6.77 inch) longer, 7 mm (0.28 inch) wider and has 105 liters (3.71 ft3) bigger cargo space than Nissan GT-R (2015).
Nissan GT-R (2015) is 28 mm (1.10 inch) higher and 109 kg (240 lbs) lighter than BMW 8 Series (G15) (2018).