BMW 5 Series (2017) is 245 mm (9.65 inch) longer, 53 mm (2.09 inch) wider and has 29 liters (1.02 ft3) bigger cargo space than Opel Astra Sports Tourer (2014).
Opel Astra Sports Tourer (2014) is 36 mm (1.42 inch) higher and 240 kg (529 lbs) lighter than BMW 5 Series (2017).