Aston Martin Vantage (2018) is 86 mm (3.39 inch) wider and 70 kg (154 lbs) lighter than Opel Insignia Sports Tourer (2017).
Opel Insignia Sports Tourer (2017) is 448 mm (17.64 inch) longer, 240 mm (9.45 inch) higher and has 260 liters (9.18 ft3) bigger cargo space than Aston Martin Vantage (2018).