Not a AT4, but is a GM product.

[TDCAT41]

(first off, sorry if I am not supposed to post this here... Just wanted to share)

Here is the GM Defense ISV on "Lay Leno's Garage" (more videos on YouTube)
It's based off the Colorado ZR2 w/ 2.8 turbo diesel. Built using 90% factory parts.
Hendrick racing modifies the stock chassis. We build them in Concord, NC.

 

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[Regular Cab Duallies]

(first off, sorry if I am not supposed to post this here... Just wanted to share)

Here is the GM Defense ISV on "Lay Leno's Garage" (more videos on YouTube)
It's based off the Colorado ZR2 w/ 2.8 turbo diesel. Built using 90% factory parts.
Hendrick racing modifies the stock chassis. We build them in Concord, NC.

View attachment 674

Oh man that looks sweet! Am I allowed to ask about the price? Got any more pictures you can share?
Thanks!

 

[TDCAT41]

Oh man that looks sweet! Am I allowed to ask about the price? Got any more pictures you can share?
Thanks!

There are a few more videos on YouTube about it.
Look up "GM ISV".

We are currently only building them for the military. With different variants in the works.
Already have a EV version being tested.

As for price... Can't really disclose that info. But they are much cheaper and easier to maintain, do to being based off of a vehicle you can get parts for about anywhere.
Most of the upgraded parts anyone can order. (We use about all the GM "Best of the Desert" kits)

Chevy Colorado Vehicle Upgrade: Off-Road | Chevrolet Performance

Chevrolet Performance offers a variety of Off-Road vehicle upgrades for your Chevy Colorado’s driveshaft and suspension system.

www.chevrolet.com

Running gear is all stock ZR2 except the engine has emissions removed and retuned.
We use all the under armour AEV skid plates (as on the ZR2 Bison)

Short video from the local news shows the the EV version (more of a truck bed).