Audi R8 Spyder (2020) is 134 mm (5.28 inch) longer and 163 mm (6.42 inch) wider than Mercedes A-Class (2016).
Mercedes A-Class (2016) is 193 mm (7.60 inch) higher, 260 kg (573 lbs) lighter and has 115 liters (4.06 ft3) bigger cargo space than Audi R8 Spyder (2020).