Ferrari Roma (2020) is 364 mm (14.33 inch) longer and 194 mm (7.64 inch) wider than Mercedes A-Class (2014).
Mercedes A-Class (2014) is 132 mm (5.20 inch) higher, 175 kg (386 lbs) lighter and has 49 liters (1.73 ft3) bigger cargo space than Ferrari Roma (2020).