GMC Sierra 3500HD (2014) is 1242 mm (48.90 inch) longer, 137 mm (5.39 inch) wider, 262 mm (10.31 inch) higher and has 1066 liters (37.65 ft3) bigger cargo space than Land Rover Discovery (2017).
Land Rover Discovery (2017) is 875 kg (1,929 lbs) lighter than GMC Sierra 3500HD (2014).