Aston Martin DB9 (2014) is 670 kg (1,477 lbs) lighter than BMW X7 (2018).
BMW X7 (2018) is 432 mm (17.01 inch) longer, 120 mm (4.72 inch) wider, 522 mm (20.55 inch) higher and has 608 liters (21.47 ft3) bigger cargo space than Aston Martin DB9 (2014).