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Road Test: 2021 GMC Sierra 1500 Duramax 4WD Crew Cab AT4 CarbonPro

Clean Fleet Report

The 2021 GMC Sierra 1500 Duramax 4WD Crew Cab AT4 CarbonPro showed-up in my driveway and the neighbors took notice. But maybe since the predominant vehicles on the road these days are midsize to large SUVs, a big truck really isn’t so big. liter Duramax turbodiesel engine.

Sierra 97