GMC Sierra 2500HD (2016) is 4 mm (0.16 inch) longer, 16 mm (0.63 inch) wider, 30 mm (1.18 inch) higher and has 31 liters (1.09 ft3) bigger cargo space than Nissan Titan XD (2015).
Nissan Titan XD (2015) is 678 kg (1,495 lbs) lighter than GMC Sierra 2500HD (2016).
