McLaren 650S Coupe (2015) is 95 mm (3.74 inch) wider and 1112 kg (2,452 lbs) lighter than Mercedes GL-Class (2014).
Mercedes GL-Class (2014) is 634 mm (24.96 inch) longer, 647 mm (25.47 inch) higher and has 536 liters (18.93 ft3) bigger cargo space than McLaren 650S Coupe (2015).