2023 GMC Sierra 1500 AT4X new car reviews

Photograph Courtesy GMC

Has GMC made a Ford Raptor competitor with its Sierra 1500 AT4X?

Other staff views

David S. Wallens
David S. Wallens
Editorial Director

It’s big. It feels big, it looks big, it drives big.

The AT4X package, new for 2023, takes aim at the Raptor by adding a bunch of off-road goodies to the Sierra 1500: front and rear e-locking diffs, Multimatic DSSV spool-valve dampers, 2-inch lift, skid plates and 33-inch Goodyear knobbies.

Power comes from the brand’s 6.2-liter V8–420 horsepower along with 460 lb.-ft. of torque–backed by a 10-speed automatic.

Perhaps the biggest surprise, though: While it’s a big truck–blame or credit the extra height and width of the off-road package–the AT4X goes down the highway pretty well. Those Multimatic dampers are pretty amazing pieces as they tame that heavy tire and wheel package rather nicely.

Our dream: seeing them offered on the lower-buck AT4 package as well. Sure, we all dream about the big tires and brutish styling of the AT4X, but maybe the narrow-body AT4 makes more sense here?

Well, either way, I enjoyed the time in the AT4X. It’s big and not really aimed at me, but the pretty decent ride and very comfortable seats made it go down the highway nicely, a place where it might be more likely to be seen.

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