BMW 6 Series Gran Coupe (2016) is 311 mm (12.24 inch) longer and 81 mm (3.19 inch) wider than Opel Astra Sports Tourer (2017).
Opel Astra Sports Tourer (2017) is 143 mm (5.63 inch) higher, 505 kg (1,113 lbs) lighter and has 81 liters (2.86 ft3) bigger cargo space than BMW 6 Series Gran Coupe (2016).
