Acura RDX (2016) is 112 mm (4.41 inch) higher, 100 kg (220 lbs) lighter and has 130 liters (4.59 ft3) bigger cargo space than BMW 6 Series Gran Turismo (2018).
BMW 6 Series Gran Turismo (2018) is 406 mm (15.98 inch) longer and 30 mm (1.18 inch) wider than Acura RDX (2016).