Audi R8 Spyder (2020) is 173 mm (6.81 inch) wider than Mercedes C-Class (Coupe) (2014).
Mercedes C-Class (Coupe) (2014) is 166 mm (6.54 inch) longer, 190 mm (7.48 inch) higher, 50 kg (110 lbs) lighter and has 105 liters (3.71 ft3) bigger cargo space than Audi R8 Spyder (2020).