GMC Sierra 3500HD (2016) is 838 mm (32.99 inch) longer, 41 mm (1.61 inch) wider, 148 mm (5.83 inch) higher and has 641 liters (22.64 ft3) bigger cargo space than Honda Pilot (2015).
Honda Pilot (2015) is 635 kg (1,400 lbs) lighter than GMC Sierra 3500HD (2016).