Audi A8 (2016) is 474 mm (18.66 inch) longer and 131 mm (5.16 inch) wider than Opel Astra Sports Tourer (2017).
Opel Astra Sports Tourer (2017) is 62 mm (2.44 inch) higher, 542 kg (1,195 lbs) lighter and has 35 liters (1.24 ft3) bigger cargo space than Audi A8 (2016).
