Mercedes B-Class (2017) is 255 mm (10.04 inch) longer, 6 mm (0.24 inch) wider, 5 mm (0.20 inch) higher and has 86 liters (3.04 ft3) bigger cargo space than Seat Arona (2020).
Seat Arona (2020) is 302 kg (666 lbs) lighter than Mercedes B-Class (2017).
