GMC Sierra 2500HD (2014) is 381 mm (15.00 inch) longer, 36 mm (1.42 inch) wider, 34 mm (1.34 inch) higher and has 758 liters (26.77 ft3) bigger cargo space than Honda Ridgeline (2018).
Honda Ridgeline (2018) is 994 kg (2,191 lbs) lighter than GMC Sierra 2500HD (2014).