Ford Fusion Energi (2015) is 479 mm (18.86 inch) longer and 66 mm (2.60 inch) wider than Mercedes B-Class (2017).
Mercedes B-Class (2017) is 79 mm (3.11 inch) higher, 245 kg (540 lbs) lighter and has 146 liters (5.16 ft3) bigger cargo space than Ford Fusion Energi (2015).