Audi A7 (2019) is 60 mm (2.36 inch) longer and 52 mm (2.05 inch) wider than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 93 mm (3.66 inch) higher, 345 kg (761 lbs) lighter and has 25 liters (0.88 ft3) bigger cargo space than Audi A7 (2019).