TTAC recently spent some time out in rural Utah, where GMC was keen to show off the 2018 Sierra Denali’s capabilities in both towing and everyday driving. Does the soon-to-be-replaced luxury pickup have what it takes to get the job done?

That depends on the options boxes, and which ones have been checked.

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GMC’s got a secret, but it’s keeping it hidden under the hood of its 2017 Sierra Denali 2500HD for now.

The company released photos today of the their updated heavy-duty pickup, and made sure everyone noticed the functional hood scoop above its massive grille. (Read More…)