GMC Sierra 2500HD (2017) is 701 mm (27.60 inch) longer, 105 mm (4.13 inch) wider, 157 mm (6.18 inch) higher and has 51 liters (1.80 ft3) bigger cargo space than Subaru Ascent (2021).
Subaru Ascent (2021) is 595 kg (1,312 lbs) lighter than GMC Sierra 2500HD (2017).
