2022 GMC Sierra AT4X

After successfully introducing the AT4 version for the Sierra in 2018, GMC took another step and launched the AT4X version, which aimed higher than its cousin.

GMC looked determined to crush the F150 Raptor dominance in the segment, and that's why it tried to provide more than anything Ford had to offer. Thus, with the AT4X, the American automaker provided a vehicle that was above average not only in off-road abilities but also able to offer luxurious features that usually are not available for go-anywhere vehicles. But there's a reason why most carmakers don't offer that. Climbing back into the cabin with boots full of mud and dirty clothes due to the elements is something other than what drivers would like to do if that would damage the upholstery.

But being luxurious doesn't mean that only the interior has to be treated nicely. The car's exterior also went through an upgrade. The AT4X was available exclusively for the Crew Cab version, with either a short or a standard bed in the back. At the front, unlike the AT4, the X version featured a new grille with a brushed-bronze trim. Yet, the towing hooks were left red, just like on its non-X sibling. At the back, the tailgate had a separate folding part that opened to be used either as a step to ease access to the bed or as a bench where someone could sit and watch the fishing rod.

The interior was crafted with inspiration from the luxury car segment. Thus, the cross-stitching on the door cards and the leather upper sections looked like they were carried over from an Escalade. Furthermore, the wood trims below those areas spelled luxury everywhere. For a better driving experience, the AT4X featured a Bose sound system that took the concert hall into the woods. At the front, the occupants could enjoy the big, 13.4" wide touchscreen atop the center stack, while the driver was spoiled with a 12.3" instrument panel.

Under the hood, GMC installed as standard a 6.2-liter V8 gasoline engine paired with a ten-speed automatic transmission. Strangely, the AT4X was available with either an RWD or a 4x4 system.