Mercedes B-Class (2018) is 16 mm (0.63 inch) wider, 104 mm (4.09 inch) higher, 455 kg (1,003 lbs) lighter and has 70 liters (2.47 ft3) bigger cargo space than Volvo V50 (2017).
Volvo V50 (2017) is 121 mm (4.76 inch) longer than Mercedes B-Class (2018).