Audi A6 (2020) is 241 mm (9.49 inch) longer and 72 mm (2.83 inch) wider than Opel Astra Sports Tourer (2015).
Opel Astra Sports Tourer (2015) is 78 mm (3.07 inch) higher, 267 kg (589 lbs) lighter and has 10 liters (0.35 ft3) bigger cargo space than Audi A6 (2020).
