Ford Fiesta (Sedan) (2015) is 16 mm (0.63 inch) longer and 226 kg (498 lbs) lighter than Mercedes B-Class (2018).
Mercedes B-Class (2018) is 64 mm (2.52 inch) wider, 84 mm (3.31 inch) higher and has 124 liters (4.38 ft3) bigger cargo space than Ford Fiesta (Sedan) (2015).