Acura RDX (2016) is 312 mm (12.28 inch) higher, 228 kg (503 lbs) lighter and has 389 liters (13.74 ft3) bigger cargo space than BMW 8 Series (G14) (2019).
BMW 8 Series (G14) (2019) is 159 mm (6.26 inch) longer and 30 mm (1.18 inch) wider than Acura RDX (2016).