Description:

Self-contained race support vehicle. Workshop in the back, crew quarters up front, and enough off-grid power to run it all without a hook-up. Just spent £14.5K on a comprehensive mechanical overhaul. MOT'd. Ready to drive to your next event.

The Vehicle

2005 Four Winds Fun Mover 31C on the Ford E-450 Super Duty platform. 6.8L V10 Triton with Prins VSI LPG dual-fuel conversion — run it on autogas at roughly half the cost of petrol. Automatic, RWD. Resprayed in metallic grey. 7 belted travel seats.

This was purpose-built as a race truck and has been used as one — paddock accommodation and mobile workshop at circuit meetings.

Rear Workshop / Garage

The rear section is a dedicated workshop accessed via a full-width, full-height roller shutter door and a separate side entrance with removable access stairs. This isn't a converted living area with the sofa pushed aside — it's a proper working space built for the job.

Room for tools, spares, wheels, and equipment. Load in through the roller shutter, work from either entrance. Large external awning extends the usable covered space outside.

Crew Accommodation (9 Berths)

• 1x large overcab double
• 2x doubles in the main living area (dinette + sofa conversions)
• 3x single bunks

Full kitchen with range, microwave, and fridge. Bathroom with shower. Furnace heating. Brand new Dometic FreshJet FJZ7 3000 roof air conditioner (£2,825 RRP) — 3kW cooling, 2.5kW heating, inverter compressor, Wi-Fi control, CleanAir filtration, and Adaptive Power Mode for low-amp hook-ups. Wired to the 240V consumer unit. Plus fully rebuilt engine A/C in the cab. Driver and passenger seats re-upholstered in Ford GT40 style.

Bring your whole crew. Everyone sleeps. Everyone has a belted seat for the drive home.

Off-Grid Electrical System (Victron)

This is where it gets serious. The entire electrical system has been rebuilt around Victron Energy components:

• Victron MultiPlus-II 3000W inverter/charger — pure sine wave 230V from the battery bank, or charge from shore power/generator
• Roamer 460Ah LiFePO4 battery — 5.9 kWh of lithium storage, 10-year warranty
• Victron SmartSolar MPPT charge controller fed by 2x SolarWorld 270W monocrystalline panels (540W total on the roof)
• Victron Orion-Tr Smart DC-DC charger — charges the house battery from the alternator while driving
• Victron Cerbo GX with GX Touch screen — monitor everything from a built-in display, or remotely via the VRM Portal
• Victron SmartShunt battery monitor
• Victron Lynx Power In distribution system

Run your compressor, charge your laptops, power your data logging kit, light the workshop — all from the battery bank, topped up by solar during the day and the alternator on the drive. No need for a noisy generator in the paddock (though there's a Honda GX onboard if you want one).

Starlink satellite internet is fitted on the roof and wired in. Wifi6 network - Live timing, data uploads, video streaming — from any circuit, any field, any car park.

LPG Dual-Fuel

Prins VSI conversion on the 6.8L V10 with 2x large rear-mounted LPG tanks (upgraded from the original single tank, March 2025) and an additional fill point. Autogas is roughly 85p/litre vs. £1.45+ for petrol. On a vehicle with a V10, that's the difference between wincing every time you fill up and actually using it.

Recent Mechanical Overhaul — £14,500 (March 2025)

This vehicle has just been through LAS Motorhomes (Cummins Onan main dealer, Roade, Northants) for a comprehensive 36-item service and overhaul. Full invoice available. Highlights:

Engine & Drivetrain:

• Full service (oil, filters, plugs)
• All 10 coil packs replaced
• New auxiliary drive belt and tensioner
• New radiator and coolant
• Transmission service (internal + external filters, fluid)
• New engine sump gasket
• New exhaust silencer
• New starter battery

Steering & Suspension (essentially a full front-end rebuild):

• New top and bottom ball joints (both sides)
• Front wheel bearings re-greased, new hub seals
• New inner and outer track rod ends + drag link
• New rear spring eye bushes, shackles, and U bolts
• New front anti-roll bar bushes
• Rear air bag system repaired

Brakes:

• New rear brake callipers, pads, and discs re-faced

Habitation:

• New Dometic FreshJet FJZ7 3000 roof A/C (3kW cool / 2.5kW heat, £2,825 RRP) wired to 240V consumer unit
• Complete engine A/C rebuild (new compressor, condenser, air dryer, pipes)
• New freshwater pump and fridge element
• Entrance step rebuilt, flyscreen repaired
• Roof cleaned and sealed
• Bodywork repairs and underseal

MOT'd March 2025.

Spec Summary

Year 2005

Make/Model Four Winds Fun Mover 31C

Chassis Ford E-450 Super Duty

Engine 6.8L V10 Triton, 310 BHP

Fuel Petrol + LPG (Prins VSI dual-fuel)

Gearbox Automatic

Colour Metallic Grey

Belted Seats7

Berths9

Rear WorkshopFull-width roller shutter + side entrance

ElectricalVictron MultiPlus-II 3000W, 460Ah LiFePO4, 540W solar, Cerbo GX

Internet Starlink satellite

Awning Large external (Jumbo brand)

Generator Honda GX onboard

Weight 6,372 kg (uprate available to 7,500 kg)

Tyres 225/75R16C (twin rear)

MOT March 2025

LocationMilton Keynes area

Price

£79,995

To put that in context: the Victron electrical system alone costs £10K+ to replace. The LPG conversion and dual tanks, another £4K+. There's £14,500 of documented mechanical work from March 2025. The workshop conversion, respray, interior, solar, Starlink — you cannot build this vehicle for what I'm asking for it.

There is nothing else like this on the market. If you need a self-contained race support vehicle with a proper workshop, crew accommodation for 9, and genuine off-grid capability — this is it.

Viewing welcome by appointment in the Milton Keynes area. Full service history and invoices available.

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