This 1999 Hummer H1 is a heavily modified, low-mileage luxury off-roader that was offered by P1 Automotive in Doral, Florida, for $190,000. Showing just 8,684 miles, this H1 pairs the platform’s legendary off-road engineering with a PPE-tuned 6.6L Duramax turbo-diesel V8, Lamborghini-inspired interior work, and an extensive list of Predator and lighting upgrades. Finished in Grigio Telesto, this custom Hummer H1 blends
military-grade capability with show-level presentation in a way few trucks can match.
- H1 Background: The Hummer H1 remains one of the most extreme production 4×4 vehicles ever sold to the public. Built from 1992 through 2006, it was derived directly from the military Humvee and engineered with function as the first priority. Portal gears, inboard brakes, a central driveline tunnel, and massive ground clearance gave the H1 capabilities that few civilian trucks have ever approached.
- Built for Harsh Terrain: The H1’s reputation was earned through hardware, not marketing. Its design allowed for approximately 16 inches of ground clearance, a 72-degree approach angle, and a 37.5-degree departure angle, along with the ability to ford deep water and climb substantial vertical obstacles. Even in stock form, the H1 was an outlier. In modified form, it becomes even more of a statement.
- Duramax-Powered Performance: Power in this example comes from a PPE Xcelerator-tuned 6.6L Duramax turbo-diesel V8 rated by the seller at 800 horsepower and 1,000 lb-ft of torque. That output is routed through a GM 4L80-E 4-speed automatic transmission, giving this H1 a dramatic increase in performance over its original factory configuration while retaining a proven heavy-duty transmission.
- Luxury-Focused Interior: Inside, this H1 moves well beyond its military roots. The cabin features custom black leather seating for four, Lamborghini-inspired styling cues, embroidered bull logos in the headrests, navigation, Bluetooth, and a reverse camera. It is a dramatic contrast to the truck’s rugged external form and helps position this build closer to a high-end restomod than a basic trail rig.
- Predator & Exterior Upgrades: Finished in Lamborghini Grigio Telesto, the exterior is built to make an impression before it ever leaves the pavement. Equipment includes ADV1 forged wheels, a Predator carbon-fiber hood scoop, Predator side marker kit, Predator Search and Rescue roof rack, Predator Tall Alpha offset snorkel, LED headlights, and three 20-inch Luminix light bars. The overall look is aggressive, cohesive, and unusually polished for an H1.
- Condition & Presentation: With fewer than 10,000 miles and a recent restomod, the seller described this H1 as exceptionally clean throughout, with no known flaws noted. The paint, interior, and overall finish quality appear to have been prioritized heavily, making this one of the more visually striking H1 builds to come to market.
Why This H1?
Most Hummer H1s lean hard in one direction. They are either rough-and-ready utility rigs or overbuilt customs that lose some of the platform’s original appeal. This one manages to be both highly capable and highly finished, combining real off-road credibility, serious diesel power, and upscale materials in a package that feels fully realized.
Powertrain
- 6.6L Duramax turbo-diesel V8
- PPE Xcelerator tune
- 800 horsepower claimed
- 1,000 lb-ft of torque claimed
- GM 4L80-E 4-speed automatic transmission
Interior
- Custom black leather seats
- Lamborghini-inspired interior treatment
- Bull embroidery in headrests
- Seating for four
- Bluetooth
- Navigation system
- Reverse camera
Exterior
- Grigio Telesto paint
- Predator direct-flow carbon-fiber hood scoop
- Predator side marker kit
- Predator Search and Rescue roof rack
- Predator Tall Alpha offset snorkel
- LED headlights
- Luminix high-power LED headlights
- Three 20-inch Luminix light bars
Wheels & Tires
- ADV1 Search and Destroy one-piece forged wheels
Other Details
- 8,684 miles shown
- One of 831 H1s produced for the 1999 model year
- Offered by P1 Automotive
- Located in Doral, Florida
This is the kind of Hummer H1 that makes no attempt to be subtle. It doubles down on everything the platform already was: wide, imposing, mechanically serious, and impossible to ignore.