Bentley Bentayga (2020) is 436 mm (17.17 inch) longer, 56 mm (2.20 inch) wider, 435 mm (17.13 inch) higher and has 330 liters (11.65 ft3) bigger cargo space than BMW i8 (2017).
BMW i8 (2017) is 1940 kg (4,277 lbs) lighter than Bentley Bentayga (2020).