Ferrari Roma (2020) is 164 mm (6.46 inch) wider than Mercedes C-Class (2015).
Mercedes C-Class (2015) is 30 mm (1.18 inch) longer, 141 mm (5.55 inch) higher, 125 kg (276 lbs) lighter and has 188 liters (6.64 ft3) bigger cargo space than Ferrari Roma (2020).