Aston Martin DB9 (2015) is 1021 mm (40.20 inch) longer and 160 mm (6.30 inch) wider than Opel Adam (2015).
Opel Adam (2015) is 201 mm (7.91 inch) higher, 699 kg (1,541 lbs) lighter and has 245 liters (8.65 ft3) bigger cargo space than Aston Martin DB9 (2015).