GMC Sierra 2500HD (2014) is 775 mm (30.51 inch) longer, 36 mm (1.42 inch) wider, 201 mm (7.91 inch) higher and has 393 liters (13.88 ft3) bigger cargo space than Honda Pilot (2017).
Honda Pilot (2017) is 1080 kg (2,381 lbs) lighter than GMC Sierra 2500HD (2014).