Ford Flex (2017) is 180 mm (7.09 inch) wider and 741 kg (1,634 lbs) lighter than GMC Sierra 3500HD (2020).
GMC Sierra 3500HD (2020) is 857 mm (33.74 inch) longer, 304 mm (11.97 inch) higher and has 747 liters (26.38 ft3) bigger cargo space than Ford Flex (2017).
