Road Test: 2021 GMC Sierra 1500 Duramax 4WD Crew Cab AT4 CarbonPro
Clean Fleet Report
MARCH 30, 2021
CarbonPro designates the box is made of weight-reducing carbon fiber where the standard steel inner panels and floor are replaced with a lightweight, purpose-designed carbon fiber composite that offers best-in-class dent, scratch and corrosion resistance. Clean Fleet Report.
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