Aston Martin DB9 (2015) is 341 mm (13.43 inch) longer and 20 mm (0.79 inch) wider than Toyota GR Supra (2018).
Toyota GR Supra (2018) is 9 mm (0.35 inch) higher, 156 kg (344 lbs) lighter and has 43 liters (1.52 ft3) bigger cargo space than Aston Martin DB9 (2015).