McLaren GT (2020) is 141 mm (5.55 inch) wider and 614 kg (1,354 lbs) lighter than Porsche Cayenne (2017).
Porsche Cayenne (2017) is 171 mm (6.73 inch) longer, 474 mm (18.66 inch) higher and has 250 liters (8.83 ft3) bigger cargo space than McLaren GT (2020).