Mazda 3 (Sedan) (2019) is 268 mm (10.55 inch) longer and 10 mm (0.39 inch) wider than Mercedes B-Class (2018).
Mercedes B-Class (2018) is 112 mm (4.41 inch) higher, 11 kg (24 lbs) lighter and has 67 liters (2.37 ft3) bigger cargo space than Mazda 3 (Sedan) (2019).
Size difference at a glance
Mazda 3 (Sedan) (2019) is 6.1% longer than Mercedes B-Class (2018).
Mazda 3 (Sedan) (2019) is 0.6% wider than Mercedes B-Class (2018).
Mazda 3 (Sedan) (2019) is 7.2% lower than Mercedes B-Class (2018).
Mazda 3 (Sedan) (2019) is 0.8% heavier than Mercedes B-Class (2018).
Mazda 3 (Sedan) (2019) is 13.8% smaller in cargo space than Mercedes B-Class (2018).
Overall footprint
Mazda 3 (Sedan) (2019) has a 6.7% larger overall footprint (length × width).
