GMC Sierra 2500HD (2015) is 1684 mm (66.30 inch) longer, 224 mm (8.82 inch) wider, 304 mm (11.97 inch) higher and has 999 liters (35.28 ft3) bigger cargo space than Hyundai Tucson (2014).
Hyundai Tucson (2014) is 123 kg (271 lbs) lighter than GMC Sierra 2500HD (2015).