The Mil-Spec Auto Launch Edition is the ultimate custom Hummer H1, a hand-built reinvention of the AM General original that swaps military austerity for luxury without losing any toughness. Built by Mil-Spec Automotive, it pairs a 500-horsepower Duramax turbo-diesel with a fully re-manufactured chassis and a bespoke, premium interior, turning the iconic H1 into one of the most desirable off-road machines on the road.
What is the Mil-Spec Hummer H1 Launch Edition?
Mil-Spec Automotive set out to build the ultimate AM General Hummer H1. Even though the truck was already mil-spec out of the factory, the team re-envisioned the military giant as a luxurious off-road experience. The result is a diesel Hummer H1 that keeps the unmistakable silhouette while upgrading nearly every component to modern standards.
How much power does it make?
To get it all started, Mil-Spec swapped in an MSA-tuned Duramax 6.6-litre turbo-diesel V8 that delivers 500 horsepower and 1,000 lb-ft of torque through an Allison transmission. The engine can be further customized on request with stage 2 and stage 3 tuning options. It takes this iron giant just 6.8 seconds to reach 0 to 100 km/h, and the speed is electronically limited to 154 km/h for obvious reasons. The engine sits on a revamped chassis that is re-manufactured in-house by Hummer H1 specialists, taking each piece apart and reassembling it with new parts. Both the frame and components are then powder-coated to ensure longevity.
What is the interior like?
If you have ever seen the interior of the original Hummer H1, you know there is a lot of blank space. As a military service vehicle, it had no reason to offer anything inside beyond the pedals, gear and steering wheel. Mil-Spec Automotive changed that experience, creating a minimal and functional interior that does not stray far from the original look. The new aluminum interior space is covered in premium materials, most of which can be customized as you order. Gone is the massive block of metal separating driver and passengers, replaced by an interface with intelligent controls for easy interaction.
What other upgrades does it get?
Each Launch Edition H1 receives a tri-level insulation system that keeps road noise and ambient sound as low as possible, plus a Kevlar coating for maximum durability against the harshest elements. The truck is built from premium parts designed to work together as a system, with optional upgrades like long-travel suspension and 6-piston Wilwood brakes. The exterior treatment makes it the most aggressive-looking H1 on the road. Fully customizable and purpose-driven, this custom Hummer H1 is the leanest, meanest machine you will ever see. You can read more on Carscoops and Motor1.
Explore Hummers and off-road SUVs at TheArsenale
TheArsenale offers the Mil-Spec Auto Hummer H1 Launch Edition itself, ready to configure to your taste. Browse more rugged machines in the cars collection, including the MEV Hummer HX-T custom off-road SUV, the Rezvani Tank Military Edition armored SUV, and the Rezvani Hercules 6x6 Military Edition.
