Acura RLX (2017) is 11 kg (24 lbs) lighter than BMW 6 Series Gran Turismo (2019).
BMW 6 Series Gran Turismo (2019) is 108 mm (4.25 inch) longer, 12 mm (0.47 inch) wider, 74 mm (2.91 inch) higher and has 187 liters (6.60 ft3) bigger cargo space than Acura RLX (2017).