Ineos Decides To Put This Extreme Concept Into Production

Building on the already rugged foundation of the Grenadier, the Trialmaster X Letech is an official production version of the concept revealed at last year’s Goodwood Festival of Speed.

Letech—known for its restoration work and custom off-road builds—started with a standard Grenadier and installed portal axles, a heavy-duty five-link suspension setup, and 37-inch BF Goodrich Mud Terrain tires. Ground clearance increases to a wild 450 mm (17.7 inches), and wading depth is up to 1,050 mm (41.3 inches). The portal axle conversion alone adds over 7 inches of clearance compared to the standard truck.

The changes to the Grenadier's suspension geometry improve axle articulation and weight distribution to handle "extreme environments" including deep sand, high water, and heavy rock.

Originally previewed as a concept at the 2023 Goodwood Festival of Speed, the Letech-tuned Grenadier received enough customer interest—particularly from emergency response services and remote rescue organizations—to justify production. While the concept was based on the Quartermaster, the final version includes both body styles.

Along with the suspension mods, the rugged package includes 18-inch forged beadlock wheels, extended fenders to cover the widened track, a front winch, roof-mounted LED lighting, and a modular roof rack system. A new rear ladder and additional cargo options like lockable drawer storage round out the kit.

Inside, the Grenadier Trialmaster X Letech adds heated leather front seats, a premium audio system, Safari-style windows, privacy glass, carpeted mats, and a smattering of Trailmaster-specific badging. There’s also the option of an onboard tire inflation system.

Drivetrains remain unchanged, with buyers choosing between BMW-sourced 3.0-liter turbocharged inline-sixes in gasoline or diesel flavors. Both options are paired with a ZF eight-speed automatic and deliver 3,500 kg (7,716 lbs) of towing capacity. Payload capacity peaks at 642 kg (1,415 lbs) in the Quartermaster version.

Production takes place in Germany, where Letech modifies standard Grenadiers delivered from Ineos’ Hambach facility in France. According to Ineos, more than 1,000 customers expressed interest in the concept version revealed last summer. First orders are already open in Germany, with expansion to additional markets planned.

Pricing starts at roughly €170,000 ($199,000 USD) before taxes—making it the most expensive Grenadier to date, surpassing even the limited-production Detour model from 2023.

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