General Motors launched the GMC Sierra AT4 with the debut of the light-duty pickup’s fourth generation for the 2019 model year. The Sierra range, including the AT4, was later refreshed for the 2022.5 ...
The casual observer may not have noticed, but the GMC Sierra AT4X now has its own grille design, an aesthetic departure from the regular Sierra AT4. When the AT4X first joined the lineup in 2022, it ...
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