GMC Sierra 2500HD (2018) is 861 mm (33.90 inch) longer, 159 mm (6.26 inch) wider, 372 mm (14.65 inch) higher and has 1143 liters (40.36 ft3) bigger cargo space than Volvo XC70 (2020).
Volvo XC70 (2020) is 928 kg (2,046 lbs) lighter than GMC Sierra 2500HD (2018).