BMW 8 Series (G14) (2018) is 465 mm (18.31 inch) longer, 42 mm (1.65 inch) wider, 47 mm (1.85 inch) higher and has 165 liters (5.83 ft3) bigger cargo space than Toyota GR Supra (2020).
Toyota GR Supra (2020) is 294 kg (648 lbs) lighter than BMW 8 Series (G14) (2018).