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2019 GMC Sierra AT4 First Drive Review | Off-road overkill

The road ahead is dirt with a rut here and a rock there. Brush keeps a respectable distance on the right side, the edge on the left gradually falls away into the valley below. The grade is nothing your treadmill couldn't duplicate and traction is pretty good. Honestly, a couple in their Subaru Crosstrek could pop up here for a picnic. The 2019 GMC Sierra AT4 we're driving is therefore complete overkill. But at least it looks the part as it trudges up this uncharacteristically verdant mountain with San Diego in the distance to the north and Mexico to the south. Its special, dechromed AT4 grille has a purposeful appearance, but tastefully lacks the show-off machismo of Ford and Ram's off-roading models. The red tow hooks are a nice touch and the dark-accented 20-inch wheels wrapped in all-terrain rubber are just the right size beneath a suspension that is raised an extra 2 inches from every other Sierra. That would be one of the key elements that differentiates the AT4 as the Sierra's off-roading model – GMC's answer to the Chevy Silverado's Trail Boss trims. In fact, their mechanical enhancements are identical. Besides the 2-inch lift, the suspension features off-road-tuned Rancho monotube shocks. There's also a locking rear differential, a two-speed transfer case, skid plates and those tow hooks. The 5.3-liter V8 with Dynamic Fuel Management is similarly standard, but unlike the Silverado Trail Boss, the Sierra AT4 offers the 6.2-liter V8 good for 420 horsepower and 460 pound-feet of torque as a roughly $2,500 option. That's the engine we have and it delivers the expected punch, complete with a satisfyingly snarling exhaust note. However, as observed in back-to-back drives with these two available engines during the Silverado launch, the 6.2 certainly isn't necessary. The 5.3-liter is seriously capable and the bigger engine is largely for those who want to have the biggest number possible emblazoned on the fender. It's overkill, which in this particular environment, is fitting. Besides the available engine upgrade, the AT4 also goes beyond its Trail Boss counterpart by dipping into the Sierra Denali's tool box. Its MultiPro tailgate is standard equipment, allowing for six different configurations, the most notable of which include a means of more easily reaching into the bed and a drop-down step that eases entry into the bed. GMC's considerable touting of that last element is rife with hypocrisy given GM advertisements that mocked Ford's similar feature.

Overland Expo's GMC Sierra AT4X is an Aussie-style ultimate overlander

Overland Expo is a caravan of companies producing everything one could need or want for overlanding. So what better what to showcase the kind of hardcore overlander possible by dipping into that parts caravan than to build just such an overlander? That's what the Expo did in creating its second Ultimate Build, based on a 2022 GMC Sierra AT4X. Overland Expo said it chose the Sierra for the 6.2-liter V8 with 420 horsepower and 460 pound-feet of torque because it wanted to "go bigger and more extreme" than its first build last year, which was based on a Toyota 4Runner TRD Off-Road. This Sierra trim was chosen over its AT4 sibling due to the extra dose of rugged, like the Multimatic spool dampers that provide about an inch more suspension travel front and rear, and the front and rear locking differentials. The Denali-like luxury isn't a bad thing to have, either. The only performance mods are a MagnaFlow cat-back exhaust, Firestone Ride-Rite air springs at the bag and 17-inch Icon Dynamics wheels on 33-inch 33 Firestone Destination Mud Terrains replacing the stock 18-inchers on Goodyear Wranglers.   Rig builder Mule Expedition Outfitters tapped more than 21 exhibitors for components, and spent "hundreds of hours" putting them all together seamlessly. The most eye-catching swap comes from the MITS Alloy three-foot canopy and tray that replaces the pickup bed. MITS is an Australian company, hailing from the land that also gives us overlanding powerhouses like ARB and Old Man Emu, and this is a popular outback-style rig. In addition to the storage areas on the sides and underneath, the canopy holds a Dometic refrigerator, Green Goat Outdoors camp kitchen and an eight-gallon water can that feeds a Geyser Systems shower. A solar panel on the roof routes power to a pair of lithium-ion batteries in the canopy as well, their output controlled by a Redarc RedVision Manager30.  There are plenty of Rigid lights for avoiding trouble, and a Forrest Tool Max Tool Kit plus GoTreads for when trouble inevitably appears anyway. The crew cab should hold plenty of gear, but anything else that needs to be stored outside will go in a set of 3D dry bags.

2.0-liter turbo four reportedly returning to Chevrolet Equinox line-up for 2022

Chevrolet's popular Equinox crossover will enter the 2021 model year with comprehensive updates and a turbocharged, 1.5-liter four-cylinder as its only available engine. The 2.0-liter turbo four offered through 2020 is allegedly leaving the line-up, but it will be replaced for 2022 with a newer engine that produces slightly less power while returning better fuel economy, according to a recent report. Called LSY internally, the new 2.0-liter turbo four already powers the Cadillac XT4, among other models in the General Motors portfolio. Enthusiast website GM Authority learned it will deliver 237 horsepower at 5,000 rpm and 258 pound-feet of torque from 1,500 to 4,000 rpm. For context, the 2.0-liter available through 2020 (known as LTG) made 252 horses and 260 pound-feet of twist, and the 1.5-liter posts figures of 170 and 203, respectively. As a trade-off for the slight drop in horsepower and torque, the LSY is smoother, quieter and cleaner than the LTG it replaces. Transmission options remain unconfirmed, but the four-cylinder will likely shift through a nine-speed automatic. Front-wheel drive will come standard, and all-wheel drive will be offered at an extra cost. Chevrolet hasn't commented on the report; it hasn't even confirmed the Equinox is losing the LTG engine for 2021. If the rumor is accurate, details about the 2022 Equinox should be released during the first half of 2021. GM Authority added the GMC Terrain, which is closely related to the Equinox, will receive the new engine for 2022 as well. Both should have gotten it for 2021, but the on-going global pandemic delayed its launch. Related Video: