Aston Martin DB9 (2015) is 24 mm (0.94 inch) wider than Opel Insignia Sports Tourer (2017).
Opel Insignia Sports Tourer (2017) is 194 mm (7.64 inch) longer, 230 mm (9.06 inch) higher, 185 kg (408 lbs) lighter and has 418 liters (14.76 ft3) bigger cargo space than Aston Martin DB9 (2015).