McLaren 675LT Coupe (2016) is 285 mm (11.22 inch) wider and 192 kg (423 lbs) lighter than Mercedes C-Class (Coupe) (2017).
Mercedes C-Class (Coupe) (2017) is 140 mm (5.51 inch) longer, 221 mm (8.70 inch) higher and has 161 liters (5.69 ft3) bigger cargo space than McLaren 675LT Coupe (2016).