McLaren 600LT (2019) is 120 mm (4.72 inch) wider and 192 kg (423 lbs) lighter than Mercedes C-Class (Coupe) (2020).
Mercedes C-Class (Coupe) (2020) is 81 mm (3.19 inch) longer, 213 mm (8.39 inch) higher and has 206 liters (7.27 ft3) bigger cargo space than McLaren 600LT (2019).