Acura RDX (2018) is 310 mm (12.20 inch) higher, 129 kg (284 lbs) lighter and has 319 liters (11.27 ft3) bigger cargo space than BMW 8 Series (G15) (2019).
BMW 8 Series (G15) (2019) is 159 mm (6.26 inch) longer and 30 mm (1.18 inch) wider than Acura RDX (2018).