Acura RDX (2017) is 306 mm (12.05 inch) longer, 12 mm (0.47 inch) wider, 359 mm (14.13 inch) higher and has 554 liters (19.56 ft3) bigger cargo space than Toyota GR Supra (2020).
Toyota GR Supra (2020) is 66 kg (146 lbs) lighter than Acura RDX (2017).