Audi A6 (2018) is 20 mm (0.79 inch) longer and 18 mm (0.71 inch) wider than Opel Insignia Sports Tourer (2014).
Opel Insignia Sports Tourer (2014) is 58 mm (2.28 inch) higher, 45 kg (99 lbs) lighter and has 30 liters (1.06 ft3) bigger cargo space than Audi A6 (2018).
