Buick Regal TourX (2020) is 315 mm (12.40 inch) longer, 114 mm (4.49 inch) higher, 133 kg (293 lbs) lighter and has 285 liters (10.06 ft3) bigger cargo space than Nissan GT-R (2016).
Nissan GT-R (2016) is 33 mm (1.30 inch) wider than Buick Regal TourX (2020).