Sierra 1500 represents the seventh model year of the fourth-gen full-size pickup truck. Here's everything new and different ...

The pre-refresh Sierra AT4 features a series of horizontal slats configured in a different pattern from the one on the refreshed model. In both trucks, the GMC logo is prominently placed in the ...

this fully optioned out Sierra AT4 truck stickers for just over $65k. While not out of the norm for today’s trucks, I can’t imagine paying this much money for a half-ton truck with a 2-inch ...

The 2019 GMC Sierra AT4 proves that GM's upmarket truck and SUV brand is getting serious about offering rough-and-tumble capability to rival the Ford F-150, Toyota Tundra, Ram 1500 and Nissan Titan.

These days, GMC offers six vehicles with the AT4 package: three SUVs and three pickups, including the Canyon, Sierra 1500 ... and this one has power folding and extending vertical trailering ...

Showing the 2020 GMC Sierra 1500 4WD Double Cab 147" AT4 $5,065 Starting MSRP $5,065 Starting MSRP $3,355 Starting MSRP includes (PDO) AT4 Preferred Package (R3O) LT275/65R18C MT blackwall ...