BMW 5 Series Touring (2016) is 13 kg (29 lbs) lighter than Ford Flex (2016).
Ford Flex (2016) is 129 mm (5.08 inch) longer, 356 mm (14.02 inch) wider, 169 mm (6.65 inch) higher and has 663 liters (23.41 ft3) bigger cargo space than BMW 5 Series Touring (2016).