Audi R8 Spyder (2020) is 133 mm (5.24 inch) wider than Mercedes C-Class (2017).
Mercedes C-Class (2017) is 260 mm (10.24 inch) longer, 202 mm (7.95 inch) higher, 210 kg (463 lbs) lighter and has 254 liters (8.97 ft3) bigger cargo space than Audi R8 Spyder (2020).