McLaren 570GT (2017) is 256 mm (10.08 inch) wider and 385 kg (849 lbs) lighter than Mercedes GLK-Class (2017).
Mercedes GLK-Class (2017) is 5 mm (0.20 inch) longer, 498 mm (19.61 inch) higher and has 80 liters (2.83 ft3) bigger cargo space than McLaren 570GT (2017).