Acura RLX (2017) is 39 mm (1.54 inch) longer and 23 mm (0.91 inch) wider than BMW 5 Series Gran Turismo (2019).
BMW 5 Series Gran Turismo (2019) is 13 mm (0.51 inch) higher, 25 kg (55 lbs) lighter and has 108 liters (3.81 ft3) bigger cargo space than Acura RLX (2017).