GMC Sierra 1500 (2015) is 271 mm (10.67 inch) longer, 101 mm (3.98 inch) wider, 92 mm (3.62 inch) higher and has 1057 liters (37.33 ft3) bigger cargo space than Volvo XC90 (2017).
Volvo XC90 (2017) is 98 kg (216 lbs) lighter than GMC Sierra 1500 (2015).