Acura RDX (2015) is 282 mm (11.10 inch) longer, 12 mm (0.47 inch) wider, 386 mm (15.20 inch) higher and has 554 liters (19.56 ft3) bigger cargo space than Toyota GR Supra (2018).
Toyota GR Supra (2018) is 57 kg (126 lbs) lighter than Acura RDX (2015).