Acura RDX (2018) is 58 mm (2.28 inch) wider, 116 mm (4.57 inch) higher and has 199 liters (7.03 ft3) bigger cargo space than Opel Astra Sports Tourer (2015).
Opel Astra Sports Tourer (2015) is 14 mm (0.55 inch) longer and 220 kg (485 lbs) lighter than Acura RDX (2018).