Ford Expedition (2017) has 73 liters (2.58 ft3) bigger cargo space than GMC Sierra 2500HD (2015).
GMC Sierra 2500HD (2015) is 749 mm (29.49 inch) longer, 43 mm (1.69 inch) wider, 27 mm (1.06 inch) higher and 890 kg (1,962 lbs) lighter than Ford Expedition (2017).