McLaren 720S (2019) is 192 mm (7.56 inch) wider and 1128 kg (2,487 lbs) lighter than Mercedes G-Class (2015).
Mercedes G-Class (2015) is 221 mm (8.70 inch) longer, 758 mm (29.84 inch) higher and has 284 liters (10.03 ft3) bigger cargo space than McLaren 720S (2019).