2021 GMC Sierra AT4 1500 - Crew Cab 4x4
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YouTubeBrian Mello
2021 GMC Sierra AT4 1500 - Crew Cab 4x4
Welcome back to the channel! In today's video we take a look at a new 2021 GMC Sierra AT4 1500 Crew Cab in Satin Steel Metallic paint with Jet Black leather interior. Introduced on the 2019 Sierra, AT4 was created as a unique persona that offers credible capability while still providing premium everyday comforts. AT4 variants distinctively ...
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