Nissan GT-R (2014) is 81 mm (3.19 inch) wider than Opel Astra Sports Tourer (2015).
Opel Astra Sports Tourer (2015) is 27 mm (1.06 inch) longer, 166 mm (6.54 inch) higher, 340 kg (750 lbs) lighter and has 225 liters (7.95 ft3) bigger cargo space than Nissan GT-R (2014).