McLaren 720S (2019) is 289 mm (11.38 inch) wider and 138 kg (304 lbs) lighter than Mercedes C-Class (Coupe) (2014).
Mercedes C-Class (Coupe) (2014) is 49 mm (1.93 inch) longer, 234 mm (9.21 inch) higher and has 128 liters (4.52 ft3) bigger cargo space than McLaren 720S (2019).