Aston Martin Vantage (2017) is 8 mm (0.31 inch) wider and 85 kg (187 lbs) lighter than BMW 8 Series (G15) (2020).
BMW 8 Series (G15) (2020) is 114 mm (4.49 inch) longer, 48 mm (1.89 inch) higher and has 120 liters (4.24 ft3) bigger cargo space than Aston Martin Vantage (2017).