Acura RLX (2019) is 654 mm (25.75 inch) longer, 30 mm (1.18 inch) wider, 174 mm (6.85 inch) higher and has 237 liters (8.37 ft3) bigger cargo space than Toyota GR Supra (2020).
Toyota GR Supra (2020) is 175 kg (386 lbs) lighter than Acura RLX (2019).