Subaru Impreza GJ (2014) is 113 mm (4.45 inch) higher, 409 kg (902 lbs) lighter and has 155 liters (5.47 ft3) bigger cargo space than Toyota GR Supra (2020).
Toyota GR Supra (2020) is 38 mm (1.50 inch) longer and 170 mm (6.69 inch) wider than Subaru Impreza GJ (2014).