Aston Martin DB9 (2014) is 39 kg (86 lbs) lighter than BMW 8 Series (G15) (2019).
BMW 8 Series (G15) (2019) is 124 mm (4.88 inch) longer, 22 mm (0.87 inch) wider, 58 mm (2.28 inch) higher and has 278 liters (9.82 ft3) bigger cargo space than Aston Martin DB9 (2014).