Aston Martin DB9 (2016) is 325 mm (12.80 inch) longer and 84 mm (3.31 inch) wider than Mazda 6 Atenza (2020).
Mazda 6 Atenza (2020) is 284 mm (11.18 inch) higher, 319 kg (703 lbs) lighter and has 334 liters (11.80 ft3) bigger cargo space than Aston Martin DB9 (2016).
