McLaren 570GT (2017) is 140 mm (5.51 inch) wider, 950 kg (2,094 lbs) lighter and has 15 liters (0.53 ft3) bigger cargo space than Mercedes GLS-Class (2021).
Mercedes GLS-Class (2021) is 804 mm (31.65 inch) longer and 622 mm (24.49 inch) higher than McLaren 570GT (2017).