GMC: Refinement ventures off-road with all-new Sierra AT4

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General Motors has been leading us on a wild ride this year with the cadence with which the company has been releasing information about the pair of new 2019 ½-ton pickups from Chevrolet and GMC. Then again, with the amount of tire-swallowing potholes now scattered around the Big Apple, a rugged truck like the Sierra AT4 could be the flawless vehicle for either off-road excursions or an especially bumpy commute.

In fact, Automotive News reports that every model in GMC's lineup will get an AT4 version within the next two years.

Of course, there are a lot of extra boxes you can check when you order your Sierra AT4 - you can replace the 5.3-liter V8 with the more potent 6.2-liter gas burner or the new 3.0-liter I6 diesel.

Traction Select System allows the driver to choose from preset drive modes that have been tailored for different terrain or weather conditions. Currently, the All-Terrain package for the Sierra will set you back $2,670, which we imagine will only go up for the AT4. Mud terrain-rated Goodyear Wrangler DuraTrac tires or 20-inch wheels with all-terrain tires also will be available. Both optional engines use the new 10-speed automatic to transfer power to the rest of the drivetrain.

In the Sierra's case, the AT4 model is immediately recognizable with body-colored and black chrome accents.

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A black chrome finish on the foglight bezels, fender surround, and grille insert add to the truck's sinister exterior styling. Interior details include dark-tinted and textured aluminum finishes on the steering wheel, center stack and sill plates, two-tone leather seating with embroidered AT4 badging on the headrests and all-weather floormats.

With the Sierra AT4, GMC is offering a choice of three engines. Fiat Chrysler Automobiles offers its Ram 1500-3500 pickup trucks in a variety of special editions, including the 2019 Ram 1500 Kentucky Derby Edition that will debut in NY. Interior is specific to the AT4 and falls between SLT and Denali grades-meaning it's upscale and very well appointed, with trim elements that add to the pickup's youthful attitude.

The V-8 engines feature stop-start technology and GM's new Dynamic Fuel Management that enables the engine to operate on one to eight cylinders, depending on demand, to optimize power and efficiency. The truck gets a bunch of cool new features, a new diesel engine option and a carbon fiber composite.

With a strong foundation of manufacturing trucks since 1902 and now selling in a dozen countries across the world, GMC offers purpose-built vehicles designed and engineered to the highest standard.

Perhaps the biggest news here is that GMC is apparently launching another sub-brand, similar to its luxury Denali lineup.