INEOS has given a glimpse of potential future Grenadier variants at the Goodwood Festival of Speed, with a series of prototypes underlining the versatility of the body-on-frame 4X4.

The reveals came as the company, owned by billionaire Sir James Ratcliffe, announced it was to partner with the Royal National Lifeboat Institutionwhich will see the Grenadier become its official vehicle supplier.

At Goodwood a portal-axled Grenadier Quartermaster and Station Wagon were shown alongside a short-bed Quartermaster Pick-Up, a V8-powered Station Wagon, an eight-seater Safari conversion and the first FIA approved rally modified Grenadier.

German vehicle modifiers LeTech GmbH and Co KG, a retail partner of Ineos Automotive, introduced a raised chassis fitted with portal axles and offset wheel hubs that increase ground clearance by 250mm to 514mm and wading depth from 800mm to 1050mm.

Larger off-road tyres complete the modifications. The portal axle Grenadier already has real-world applications, as similarly modified vehicles were recently delivered to the fire brigade in Muhlheim an der Ruhr in Germany.

The short-bed Quartermaster Pick-Up, nicknamed the Shortermaster, was created by Ineos engineers at the Hambach production plant in France. Based on a standard Grenadier Station Wagon, the wheelbase of the double-cab pick-up measures 2922mm, a full 305mm or 12 inches shorter than the Quartermaster.

The rear seats have been pushed forward to maximise the capacity of the load bay, which is fully integrated into the chassis.

The Grenadier V8 Prototype was created as a one-off project for Ineos partner Magna's engineering apprentices to give them hands-on experience of the Grenadier.

This resulted in a complete powertrain exchange, replacing the Grenadier's BMW 3.0-litre straight-six petrol engine with a GM 6.2-litre V8 petrol unit that develops 317kW and 625Nm.

The swap required a complete re-engineering of the engine mounts, engine electrics and electronics, water and oil cooling, exhaust manifold and rear silencer, transmission bearings and heat shields, as well a revised centre console.

The eight-seat Safari game-viewer is a converted Quartermaster Pick-Up by Botswana based Ineos Kavango, which creates extensive specialist modifications for the conservation, safari, anti-poaching, veterinary, primary healthcare and film production sectors.

The vehicle has three tiered rows of seats offering excellent visibility for all passengers, enhanced off-road protection from bespoke front and side protection bars, bespoke alloy wheels shod in off-road tyres to tackle the most demanding safari terrain.

Showing the Grenadier's compatibility with high-speed, off-road motorsport, Buzz Special Vehicles displayed the first FIA-compliant Grenadier.

Extensively modified to compete in the 2025 World Rally-Raid Championship, the Buzz-prepped Grenadier features an uprated version of the Grenadier's BMW 3.0-litre straight-six petrol engine that develops 260kW and 550Nm - a 50kW and 100Nm increase over the production engine - complemented by a sports exhaust system, race suspension from Warwick-based R53, uprated brakes, and bespoke alloy wheels.

A stripped-out cabin with full internal roll-cage, racing bucket seats and carbon interior door panels and roof vents completes the racing modifications.

Lynn Calder chief executive of Ineos Automotive, said:"The Grenadier's body-on-frame chassis has already proven itself to be incredibly versatile, so as we look to future product and limited editions, we want to keep innovating. As our new brand campaign states, the Grenadier is Built For More, and over the next few years we will be showing just what that means."

Meanwhile, the arrangement with the RNLI will see Grenadier Station Wagons deployed at locations around the UK and Ireland to support the charity's volunteers in their lifesaving role.

As well as undertaking regular duties at RNLI lifeboat stations, the Grenadier's main role will be to position, launch and recover the RNLI's D-Class lifeboat at selected stations. Highly manoeuvrable and able to operate close to shore, the inflatable D-Class has for the past 60 years been the charity's workhorse, saving over 30,000 lives and aiding over 160,000 people.

It comes into its own for searches and rescues in the surf, shallow water and confined locations, often close to cliffs, among rocks and even inside caves.