Nelson

GMC has found another way to distinguish itself from Chevrolet. It has added an Off-Road Performance Package to the list of available equipment on the Sierra AT4. The upgrade brings along a cat-back exhaust, a performance air intake, and upgraded 6.2-liter engine. When equipped with the new package, the 2019 GMC Sierra AT4 gets a 10-speed automatic […]


The post GMC Sierra AT4 Gains Off-Road Performance Package appeared first on MotorTrend.






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