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Spy photos suggest more rugged GMC Sierra HD AT4X is on the way

Ford has the Super Duty Tremor. Ram has the Power Wagon. GM doesn't yet have a really serious heavy duty pickup off-roader, but these spy shots suggest that may be changing. They show a GMC Sierra HD with plenty of height, chunky tires and a prominent skid plate. We suspect it may be an AT4X trim, to slot above the somewhat trail-oriented AT4 already on sale. Despite the heavy camouflage on each end, we can see right away that this GMC has a new front bumper that's turned up at each end, likely to leave some space for getting tires up to obstacles. There doesn't appear to be the air dam that shows up on all other Sierra HD models, either. Under the front end is a very prominent skid plate. Other interesting aspects include the tires. They appear to be the same model of Goodyear Wranglers used on the Chevy Silverado 1500 ZR2, and not the ones currently in use on the Sierra HD AT4. Also, this extra rugged Sierra features a huge exhaust tip, which seems to confirm the Duramax turbodiesel V8 will be available, probably as an option over the gas V8. This is noteworthy since the Ram Power Wagon is only available with a gas engine. Of course the Ford Super Duty Tremor is available with both gas and diesel engines. The regular Sierra 1500 AT4X was only just revealed last October for the 2022 model year. So we would expect that this heavy duty version would make an appearance for either the 2023 or 2024 model year of the model. It could accompany a light refresh of the truck, again similar to the lighter duty model. We expect it will also feature some additional suspension and drivetrain upgrades to help it compete with the Ford and Ram off-roaders. Related video: This content is hosted by a third party. To view it, please update your privacy preferences. Manage Settings.

2023 GMC Sierra AT4X new AEV Edition's spirit animal is the Bison

GMC's newly redesigned 2023 Sierra is getting some equipment that might sound familiar to fans of the Chevrolet Colorado ZR2 formula that inspired it. Don't call it a "Bison," but the new Sierra AT4X AEV (American Expedition Vehicles) Edition sounds an awful lot like everybody's favorite bovine-themed midsize off-road pickup, and GMC says it will be its most off-road capable factory Sierra 1500 ever. If you're not familiar with the AT4X formula, it's already pretty robust. The GMC twin to the new Silverado ZR2 boasts Multimatic DSSV spool-valve dampers, improved ground clearance and approach/departure/breakover angles compared to the "standard" AT4, plus front and rear electronic locking differentials. The AEV Edition looks to the margins for additional improvement.  "The Sierra 1500 AT4X is an incredibly formidable platform when it comes to on- and off-road performance and capability,” said AEV CEO & founder Dave Harriton. “We took our signature approach to help elevate this truckÂ’s inherent off-road capability to the next level. We are confident customers will love the result." The standard AT4X already offers plenty of ground clearance (10.8 inches) and an approach angle of 25.5 degrees, departure angle of 23 degrees and breakover angle of 22.7 degrees. The AEV Edition bumps the ground clearance to 11.2 inches and its AEV-sourced stamped steel bumpers improve the approach angle to 32.5 degrees, departure angle to 23.4 degrees (compared to 23 degrees) and the breakover angle improves to 23 degrees.  "Our customers want an uncompromising combination of on-road technology and off-road capability," GMC boss Duncan Aldred said in the company's announcement. "Leveraging GMCÂ’s unwavering dedication to providing premium trucks and AEVÂ’s expertise in engineering and integrating performance-driven parts and accessories, this truck provides extreme capability, technology and comfort." The AEV Edition will ride on 33" mud-terrain tires wrapped around unique 18-inch AEV "Salta" wheels finished in gloss black. The front end was restyled to accommodate the AEV Edition's wheel and tire package (it was too big for the existing wheel wells, apparently) and front bumper.

2022 GMC Sierra Super Cruise First Drive | Now with trailering and automatic lane-changing

Although the updated late-model year 2022 GMC Sierra is still a little ways off (In fact, it hasn't even been revealed), we've had an opportunity to try one of its headlining features: Super Cruise. But it's not quite the Super Cruise you know from the current Cadillac line. The new Sierra will be getting a newer version with two features: the ability to execute lane changes and passes automatically, and the ability to operate with a trailer. We tried the system at GM's proving grounds in Milford, Mich., and our test vehicles were 2022 Sierra prototypes. Though the trucks themselves are early examples with features not finalized, GMC representatives said the Super Cruise system is pretty much finished. The system uses close and long-range radar sensors at the front and a new set of radar sensors at the back, plus the truck's various cameras. It also utilizes the mapping data that GM has accumulated for the system to ensure it operates on approved roads and has detailed information about where the car is. Now, the first new feature enabled by the updated Super Cruise is the automatic lane-change system. The current system can change lanes on its own, but it must be prompted by a press of the turn signal. That feature remains intact, but now, if you approach a slower vehicle on a multi-lane highway, Super Cruise can check the lane next to you to see if it's safe to merge, change lanes, and then return to the original lane once the slow-moving vehicle has been passed. This is where those rear radar sensors come in. We tried it three times on GM's big banked oval course, and it did it impressively smoothly. It was able to make the decision proactively, too, making the decision to change a good distance before we were on top of the slow moving car. Oh, and of course, because this is Super Cruise, it all happened without us having to touch the wheel. Our automatic lane change test was followed by trying Super Cruise with a trailer. Now, it's important to note that the automatic lane-changing functionality won't work with a trailer. This is because that function depends on a set of radar systems at the back of the truck that are blocked by a trailer. Apart from that, the rest of Super Cruise's functions still work just fine. To make this possible (and safe), the system is able to estimate the weight of the trailer and adjust following distance accordingly, allowing it to safely slow down as needed.