Nissan GT-R (2014) is 13 mm (0.51 inch) longer and 81 mm (3.19 inch) wider than Vauxhall Astra (Sedan) (2017).
Vauxhall Astra (Sedan) (2017) is 131 mm (5.16 inch) higher, 410 kg (904 lbs) lighter and has 145 liters (5.12 ft3) bigger cargo space than Nissan GT-R (2014).