I am regularly approached by overlanders with big dreams and healthy budgets asking which vehicle I recommend for international overland travel. My answer varies based on their responses to a few basic questions, which are asked to establish their authentic style of travel, as opposed to the perceived perfection. Perfection does not exist. Or, does it? For those who do not “need” the excessive comfort or space of a full-blown Unimog or MAN truck, but are reluctant to travel long-term with a simple rooftop tent, I often recommend the purchase and/or construction of a compact 4WD with a habitat unit, preferably with a walk-through. Tom’s Land Cruisers are the benchmark, and my own personal Land Rover habitat is, in my humble opinion, an excellent example of a functional world tourer that balances comfort with capability, without being overbuilt.
The challenge many face when searching for a new compact 4WD is that there really aren’t that many vehicles rolling off the conglomerate conveyor belts that are out of the box suited to a habitat build. That’s where the OEM-recognized second-stage manufacturers come in, and Lennartz Technik has knocked it far out of the park with the recently unveiled Lennson Pro Single Cab, its bold reinterpretation of the INEOS Grenadier crafted specifically for off-road utility and rugged expedition use. Built around the Grenadier Quartermaster extended-chassis pickup, this conversion replaces the standard double-cabin configuration with a single-cabin chassis, reshaping the vehicle’s architecture to better serve as a foundation for custom builds and specialised missions.
With its roots in Lennartz Technik’s longstanding work refining Mercedes-Benz G-Class vehicles (such as the G500 4×4² and AMG G 63 6×6), the company brings deep experience in high-performance, purpose-built chassis modifications. The Lennson brand reflects this legacy, combining German engineering with tactical utility across multiple configurations.
Throughout the conversion process, Lennartz integrates portal axles and adjustable suspension developed in collaboration with Dutch specialist Reiger. These enhancements raise ground clearance to approximately 450 millimeters and enable a wading depth of up to 1,050 millimeters, significantly boosting the vehicle’s capability in challenging terrain and deep water crossings.
Under the hood, the vehicle retains INEOS’ 400-horsepower V8 engine paired with a reinforced drivetrain. At the same time, the chassis supports an expanded payload capacity of up to an astonishing 9,370 pounds (4,250 kilograms), making it well-suited for mounting expedition modules, coffee machines, a Fjällräven wardrobe, and specialized gear. The decision to maintain the Grenadier’s original V8 powertrain is particularly notable as it offers strong towing and payload capacity while preserving the vehicle’s DNA as a rugged yet user-serviceable platform. The drivetrain enhancements incorporated during the conversion extend reliability under load and across varied climates. Its durability, adaptability, and straightforward design resonate with those of us who value function over flair. The ability to source parts through the INEOS Grenadier’s global dealership network adds a layer of reassurance, especially for long-distance travelers and professionals operating in remote regions. Compared to other single-cab trucks, it stands out for its balance of modern engineering and real-world serviceability, and those muscular good looks are second to none, except for perhaps the original Land Rover Defender.
The Lennson Pro Single Cab is intended to deliver maximum usability within the INEOS Grenadier platform while meeting the demands of not only overland travelers, but also scientific teams, and specialist operators. The frame extension of 305 millimeters facilitates greater onboard utility or space for upfitted modules. The elimination of the rear seat and relocation of cabin walls creates a flatbed-ready chassis that is easier to customize for diverse applications.
The suspension system is designed to deliver both ride comfort and performance. It is engineered to withstand rugged conditions typical of desert, arctic, or sub-Saharan African expeditions, with the portal axles providing robust articulation and clearance under heavy load.
In sum, the Lennson Pro Single Cab marks a new chapter for INEOS Grenadier conversions—representing a transformation from SUV to versatile single-cab chassis purpose-built for expedition, service, or overland use. With portal axles, advanced suspension, robust power, a high wading depth, and ample payload, the vehicle reflects Lennartz Technik’s mission to fuse high-performance off-road capability with practical usability. Its debut has resonated within specialized vehicle circles and off-road communities, positioning it as a credible option for those seeking the durability and flexibility of a modern German-engineered platform with serious terrain capability and customization potential.
The $43,400 (€37,500) conversion fee covers the mechanical and structural adaptation plus legal reclassification. However, module builders or end users will still need to design and install any payload structures or campers atop the chassis. All told, an on-road camper based on the vehicle will likely cost in the region of $200,000, out of the financial reach of most of us, but within reach of a fortunate and hard-working few who may find this to be the ultimate modern overland vehicle.
As the project enters production, prospective clients can inquire directly via Lennartz Technik’s channels. The company has already rolled out digitally downloadable spec sheets and offers to process inquiries through its official website.
Read More: Overland News of the Week
Our No Compromise Clause: We do not accept advertorial content or allow advertising to influence our coverage, and our contributors are guaranteed editorial independence. Overland International may earn a small commission from affiliate links included in this article. We appreciate your support.
