BMW 8 Series (G15) (2020) is 323 mm (12.72 inch) longer and 74 mm (2.91 inch) wider than Ford Grand C-Max (2018).
Ford Grand C-Max (2018) is 343 mm (13.50 inch) higher, 331 kg (730 lbs) lighter and has 55 liters (1.94 ft3) bigger cargo space than BMW 8 Series (G15) (2020).