Ford Flex (2017) is 706 mm (27.80 inch) longer, 460 mm (18.11 inch) wider, 164 mm (6.46 inch) higher and has 818 liters (28.89 ft3) bigger cargo space than Mercedes B-Class (2020).
Mercedes B-Class (2020) is 403 kg (888 lbs) lighter than Ford Flex (2017).