McLaren 570GT (2017) is 165 mm (6.50 inch) wider and 973 kg (2,145 lbs) lighter than Mercedes G-Class (2020).
Mercedes G-Class (2020) is 138 mm (5.43 inch) longer, 768 mm (30.24 inch) higher and has 297 liters (10.49 ft3) bigger cargo space than McLaren 570GT (2017).