McLaren 675LT Coupe (2016) is 205 mm (8.07 inch) wider and 742 kg (1,636 lbs) lighter than Mercedes GLC-Class (2020).
Mercedes GLC-Class (2020) is 110 mm (4.33 inch) longer, 471 mm (18.54 inch) higher and has 155 liters (5.47 ft3) bigger cargo space than McLaren 675LT Coupe (2016).