BMW 8 Series (G15) (2018) is 603 mm (23.74 inch) longer, 127 mm (5.00 inch) wider, 56 mm (2.20 inch) higher and has 177 liters (6.25 ft3) bigger cargo space than Toyota GT86 (2017).
Toyota GT86 (2017) is 709 kg (1,563 lbs) lighter than BMW 8 Series (G15) (2018).