Nissan GT-R (2018) is 298 mm (11.73 inch) longer, 94 mm (3.70 inch) wider, 75 mm (2.95 inch) higher and has 165 liters (5.83 ft3) bigger cargo space than Porsche 718 Cayman (2017).
Porsche 718 Cayman (2017) is 284 kg (626 lbs) lighter than Nissan GT-R (2018).