FIAT 500L Trekking (2020) is 112 mm (4.41 inch) higher and 5 kg (11 lbs) lighter than Mercedes B-Class (2017).
Mercedes B-Class (2017) is 41 mm (1.61 inch) longer, 13 mm (0.51 inch) wider and has 74 liters (2.61 ft3) bigger cargo space than FIAT 500L Trekking (2020).