In a collaboration to further enhance off-road prowess, GMC and American Expedition Vehicles (AEV) have elevated their recently unveiled Sierra HD AT4X with a groundbreaking conceptual design.
Making its first appearance at the 2023 SEMA show, the Sierra Grande concept introduces additional overlanding features to the already capable Sierra HD AT4X. The latter was unveiled as a 2024 model and stands as the pinnacle of off-road offerings from GMC’s heavy-duty pickup lineup, featuring a 1.5-inch suspension lift, Multimatic DSSV spool-valve dampers, a rear electronic locker, and fortified underbody shielding.
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Overview of the GMC Sierra 2500HD
The Sierra HD AT4X is readily available in AEV Edition from the factory, incorporating select components from the aftermarket firm. The Sierra Grande maintains the front bumper crafted from stamped steel that is part of the AEV Edition but supplements it with an added brush guard. Additionally, a quartet of AEV 7000 series off-road illuminators, as well as a winch, are affixed to the front bumper.
Detailed Features of the GMC Sierra Grande Concept
In terms of suspension, the factory-installed 1.5-inch lift remains unchanged; however, new fender flares have been installed to accommodate increased clearance for heftier tires, thereby elevating the truck’s height even further. Replacing the stock 35-inch Goodyear Wrangler Territory Mud-Terrain tires are a set of 40-inch BFGoodrich tires, which are mounted on AEV Salta XD wheels.
The original truck bed has been swapped out for an 8-foot-long aluminum tray bed, complete with an upright spare tire mount. Complementing the rear section of the Sierra Grande is a bespoke AEV rear bumper, which is equipped with its own dedicated winch.
Engine and Performance Specifications of the Sierra Grande Concept
Powering the Sierra Grande is an optional 6.6-liter Duramax turbodiesel V-8 engine, which is also available for the standard AT4X. This engine now features a snorkel for improved air intake, although this seems to be the lone modification related to its performance. In its factory condition, this engine generates 470 horsepower and 975 pound-feet of torque. The transmission is a 10-speed automatic that distributes power to all four wheels. An alternative gasoline-powered 6.6-liter V-8 engine, producing 401 horsepower and 464 pound-feet of torque, is also offered in the AT4X AEV Edition straight from the factory.
Although the Sierra Grande currently remains in the conceptual stage, it is conceivable that a comparable model could be assembled utilizing components from AEV’s existing product catalog. For those interested in a less extensive factory-built overlanding vehicle, GMC also provides AEV Editions for the Sierra 1500 and the midsize Canyon models.
Frequently Asked Questions (FAQs) about GMC Sierra Grande Concept
What is the GMC Sierra Grande Concept?
The GMC Sierra Grande Concept is a collaborative effort between GMC and American Expedition Vehicles (AEV) to elevate the off-road capabilities of the recently unveiled Sierra HD AT4X. The concept was showcased at the 2023 SEMA show and introduces a range of advanced features and hardware.
When was the GMC Sierra Grande Concept unveiled?
The Sierra Grande Concept made its debut at the 2023 SEMA show.
What additional features does the Sierra Grande Concept bring to the Sierra HD AT4X?
The Sierra Grande Concept introduces additional overlanding hardware including new fender flares for increased tire clearance, a set of 40-inch BFGoodrich tires, an 8-foot aluminum tray bed with a vertical spare-tire mount, and a custom AEV rear bumper equipped with its own winch.
What engine options are available for the Sierra Grande Concept?
The Sierra Grande is powered by an optional 6.6-liter Duramax turbodiesel V-8 engine, which is also available for the standard AT4X. This engine produces 470 horsepower and 975 pound-feet of torque and is mated to a 10-speed automatic transmission. A gasoline-powered 6.6-liter V-8 engine is also available for the AT4X AEV Edition.
Is the Sierra Grande Concept available for purchase?
As of now, the Sierra Grande remains a concept and is not available for purchase. However, it is conceivable that a similar model could be assembled using components from AEV’s existing product catalog.
What are the alternative factory-built options from GMC for overlanding?
For those interested in a factory-built overlanding vehicle but seeking a smaller scale, GMC also offers AEV Editions of the Sierra 1500 and the midsize Canyon models.
What type of suspension does the Sierra Grande Concept feature?
The Sierra Grande Concept maintains the factory-installed 1.5-inch suspension lift that is also found in the Sierra HD AT4X. It has also been equipped with new fender flares to create additional clearance for larger tires.
More about GMC Sierra Grande Concept
- 2023 SEMA Show Official Website
- GMC Official Website
- American Expedition Vehicles (AEV) Official Website
- Overview of Duramax Turbodiesel Engines
- BFGoodrich Tires Official Website
- Multimatic DSSV Technology Overview
10 comments
that 6.6L Duramax tho… 470 hp and 975 lb-ft of torque? Sign me up.
Curious about the tech inside. Any word on infotainment and driver-assist features?
New fender flares and 40-inch BFGoodrich tires? this truck is ready for anything off-road throws at it.
Sounds awesome but its still a concept. Will they actually make it?
Wow, this Sierra Grande Concept sounds like a beast! Can’t wait to see it at SEMA.
If they start selling this, Im first in line. No question.
8-foot aluminum tray bed with a spare tire mount? that’s practicality right there.
Interesting but what about fuel efficiency? These monsters are not exactly eco-friendly.
10-speed automatic transmission? thats gonna make for a smooth ride.
Love that they’re using parts from AEV. Their aftermarket components are top notch!