BMW 8 Series (G15) (2019) is 256 mm (10.08 inch) longer and 7 mm (0.28 inch) wider than Land Rover Discovery (2020).
Land Rover Discovery (2020) is 376 mm (14.80 inch) higher, 80 kg (176 lbs) lighter and has 505 liters (17.83 ft3) bigger cargo space than BMW 8 Series (G15) (2019).