GMC Sierra 3500HD (2017) is 749 mm (29.49 inch) longer, 77 mm (3.03 inch) wider, 202 mm (7.95 inch) higher and has 1681 liters (59.36 ft3) bigger cargo space than Volvo XC90 (2014).
Volvo XC90 (2014) is 364 kg (802 lbs) lighter than GMC Sierra 3500HD (2017).
