McLaren GT (2020) is 228 mm (8.98 inch) wider and 1024 kg (2,258 lbs) lighter than Mercedes G-Class (2015).
Mercedes G-Class (2015) is 80 mm (3.15 inch) longer, 740 mm (29.13 inch) higher and has 67 liters (2.37 ft3) bigger cargo space than McLaren GT (2020).