Aston Martin DB9 (2016) is 360 kg (794 lbs) lighter than Mercedes S-Class (2017).
Mercedes S-Class (2017) is 526 mm (20.71 inch) longer, 19 mm (0.75 inch) wider, 207 mm (8.15 inch) higher and has 313 liters (11.05 ft3) bigger cargo space than Aston Martin DB9 (2016).