Rugged luxury is the best way to sum up the new GMC AT4 lineup.AT4 models receive special suspension and drivetrain treatments.We take a look at what is included in each individual AT4 model.
From 2020 onward, the AT4 trim is now available across GMC?s portfolio of trucks and SUVs. The AT4 trim is for buyers who, for a premium, want both lux...
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