GMC’s new-for-2019 Sierra 1500 took a less controversial styling route than its Chevy Silverado sibling while retaining the numerous upgrades foisted upon the next-generation pickup twins. For 2020, GMC tweaked the light-duty Sierra’s offerings just a bit, hoping to lure more finicky buyers into the model. For starters, GM’s 10-speed automatic transmission has a new engine to […]
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