Ferrari Portofino (2020) is 193 mm (7.60 inch) longer and 152 mm (5.98 inch) wider than Mercedes B-Class (2017).
Mercedes B-Class (2017) is 239 mm (9.41 inch) higher, 269 kg (593 lbs) lighter and has 194 liters (6.85 ft3) bigger cargo space than Ferrari Portofino (2020).