Side by side (SxS): Mechanically propelled single‐engine land vehicles with 4 wheels propelled by their own means, and of which the propelling device and steering are controlled by a driver on board the vehicle.

These cars must be produced by minimum 500 units per year of identical model, have two seats side by side, must be registered in one country and comply with the International Convention on Road Traffic with regard to lighting. Vehicles must be 4‐wheel or 2-wheel drive only.

Group T3 cars must comply with the general prescriptions and with the safety equipment defined in Articles 282 and 283 respectively.
Any tank containing oil or fuel must be situated in the main structure of the vehicle. Only fuel tanks conforming to the FT3‐1999, FT3.5‐1999 or FT5‐1999 standards are permitted.

No part of this housing may be situated less than 40 mm above the reference surface.

Reference surface:
Plane defined by the lower face of the lowest tubes of the chassis that are situated within the vertical projection of the fuel tank.

All vehicles must have a shielding (aluminum alloy or steel plate of 6 mm minimum thickness) fitted directly onto the chassis underneath any part of the tank(s) situated less than 200 mm above the reference surface.

The number of suction points is limited to 2 and the pressure of the suction pumps must not be more than 1 bar. The number of fuel exits is limited to 2. Outside this tank, the maximum fuel capacity is 3 liters.

One or two fuel tank(s) are permitted and they may extend forward below the level of the mounting points of the seats to the chassis. No part of the protective housing of the tank (cf. Article 283‐14.2) may be situated less than 800 mm rearward of the front axle centerline.

The maximum fuel capacity is limited to 130 liters. The filler cap for the fuel must be behind or underneath the seats.

The tank must be contained in a housing attached to the chassis/safety cage, housing should be aluminum, minimum thickness 3mm or 10mm with composite material

The housing must not be:
Transversally less than 50 mm (inwards) from the outer part of the main roll bar feet
The maximum speed is limited to 130km/m with a tolerance fixed to 135km/h for a maximum of up to 1 min per hour.

Safety cage must be French Federation (FFSA) homologated (class SSV) or FIA homologated.

Except safety cage, the rest of the chassis is free but must respect dimension and position of standard components, especially suspension fixing points, engine, transmission, steering gearbox, and pedal box. It should be always possible to reinstall on chassis standard production suspension arms and dampers. The wheelbase is limited to 2700mm. The chassis if not a standard one, must be a steel tubular frame chassis out of seamless tubes with a minimum specification as in Appendix J.


 3.1- Exterior
The chassis must be a steel tubular frame chassis.

 The maximum width of the bodywork is 1900 mm without rear view mirrors and/or possible spare wheels if installed on side.

A windscreen is optional.

However, should there be one, it must be made of laminated glass regardless of its shape and surface.

If the windscreen is glued, it must be possible to remove the front doors or the windows of the front doors from inside the cockpit without using tools.

All parts of the bodywork must be carefully and fully finished, with no temporary or makeshift parts and no sharp corners.

The vehicle should have a plastic, aluminum or composite roof, minimum thickness 2mm aluminum or 3 mm plastic or composite material.

No part of the bodywork may present sharp edges or points

The bodywork must come from standard vehicle with possible modifications.

The car must be fitted with two rear view mirrors, one on each side of the car, to provide efficient views to the rear. Each mirror must have a minimum area of 90 cm2.

The Scrutineers must be assured, by means of a practical demonstration, that the driver, when seated normally, can clearly see the vehicles following him.

To this end, the driver must identify letters or figures, 15 cm high and 10 cm wide, displayed at random on boards placed behind the car according to the following instructions:

 Height Between 40 cm and 100 cm from the ground.
Width 2 m either side of the center line of the car.
Position 10 m behind the centerline  of the rear axel of the car.

Rear view cameras are compulsory provided they are not moveable

3.2 – Interior
The dimension between the floor of the cockpit and the bottom of the seat must not be less than 100 mm.

The bodywork must be designed to ensure the comfort and safety of driver and possible co‐drivers. No part of the bodywork may present sharp edges or points.

No mechanical part may protrude into the interior of the cockpit. Inspection hatches are authorized in the bulkheads of the cockpit.

Any equipment that could involve a risk must be protected or insulated and must not be situated in the cockpit.

The cars must have lateral openings allowing the exit of the driver and possible co‐drivers. The dimensions of these openings must be such that it is possible to fit into them a rectangle at least 500 mm wide and 500 mm high, measured vertically, the corners of which may be rounded with a maximum radius of 150 mm.

A bulkhead must be installed behind seats, covering all surface of the main roll cage, minimum thickness 2mm aluminum or 3 mm plastic or composite material

Cars without side windows must be fitted with lateral protection nets in accordance with Article 283‐11.

The cockpit must be designed so as to allow an occupant to exit it from his normal position in the vehicle within 7 seconds through the door on his side and within 9 seconds through the door on the other side.

For the purpose of the above tests, the occupant must be wearing all his normal equipment, the seat belts must be fastened, the steering wheel must be in place and in the most inconvenient position and the doors must be closed. These tests must be repeated for all the occupants of the car.

Mud flaps must be installed behind 4 wheels, it should hide tires from rear view except for last 10cm (from the ground to the flap), those from static position to maximum bump wheel position.

This is not necessary to cover tire in vertical or front view, anyway minimum is defined by standard vehicle bodywork.


 4.1 -Minimum weight
The minimum weight is set at 850 kg including 2 spare wheels. This is the weight of the car without fuel at any time during the competition, with one spare wheel.

4.2 – Liquids
The engine cooling fluid and lubrication oil as well as the brake fluid must be at their normal levels.

other tanks for consumable liquids must be drained and the following elements must be removed from the car:

  • Occupants, their equipment and luggage
  • Tools, portable jack and spare parts
  • Survival equipment
  • Provisions etc.

The weight of the car may be completed by adding one or several ballasts provided that they are strong and unitary blocks, fixed by means of tools, capable of having seals affixed and of being placed on the floor of the cockpit, visible and sealed by the Scrutineers.


 5.1 – Engine
The location of the engine is from standard vehicle. No preparation or modification of engine internal. It is possible to add an alternator or modify the standard alternator.

The maximum cylinder capacity is set at 1050 cm3; turbo petrol is permitted if from a standard or official manufacturer’s kit, without any modification except those defined by manufacturer for kit installation. Intercooler of this turbo kit must be a standard intercooler for that turbo vehicles where it derives from, or being the one from standard homologated turbo vehicle.

The entire engine‐transmission assembly, including the front axle, must come from the concerned standard vehicle.

In the case of a turbo engine, intercooler must remain standard. The position of the intercooler is free.

Air filter and position free, but from the tube downwards the air filter no modifications are allowed(only a single tube between air filter case and engine)

Engine radiator water and fan(s) are free, but air flow to this radiator should not pass through cockpit and the crew must be protected from contact with any cooling liquid splash in case of a leak.

Standard water pump.

Electric line for these fan(s) is free.

5.2 – Exhaust system
Free. In case of turbo free, only after turbo.

The exits of the exhaust system must be visible from outside

5.3 –  Lubrification
Radiator, oil/water exchanger, lines, thermostat, sump and pump strainers are free.

Oil pressure may by increased by changing the discharge valve spring

It is possible to install one or more fans for engine oil cooling but without giving some aerodynamic advantage

5.4 – Fuel cooling
The fitting of fuel coolers is authorized on the return circuit to the tank.

5.5 – Injection
Engine ECU free but must come from commercial catalog, electric harness free, all engine management sensors should remain standard ones without possibility to add or modify except for knocking sensor.

Additional digital or analog displays for fuel level, water temperature, oil pressures, oil temperature are allowed.

All the parts must be available, as spare parts, through the Manufacturer’s commercial network. Only CVT type or manual transmissions are authorized.

CVT Type
The belt is free provided that it is available as a spare part (reinforced or not) through the Manufacturer’s commercial network. It is possible to install a belt air cooling system.

It must come from the same vehicle/motorcycle as the engine and must be coupled to the engine in the same manner as in the production vehicle.

The gearbox casing must be standard apart from the machining of apertures for oil supply only.

Clutch free but same principle and diameter as standard one.

The gear change mechanism must be same as standard vehicle.

The rear differential mechanism is free but must not be active and must be available for sale on the commercial market.

Drive shafts
Drive shafts are free but must be made of steel.

In addition, they must be solid one piece and the joints must come from a commercial catalog.

An additional lubrication and oil cooling device is allowed (circulation pump, radiator, and air intakes) under the same conditions as for Article 286‐5.3.

The only modification authorized on the gearbox / differential housing is the one intended for adapting the additional lubrication or cooling system.


 7.1  – General
The suspension stroke is limited at 18” at the wheel.

The suspension arms are free.

Uprights, wheel bearings, hubs should stay from standard vehicle.

Steering tie rods free.

Steering gearbox housing standard.

The steering standard principle should stay standard as well as its position

7.2 – Springs and shock absorbers
Only one shock absorber per wheel is authorized.

The adjustment of the springs and/or shock absorbers from the cockpit is forbidden. It must only be possible when the car is not in motion and only with the use of tools.

The adjustment device must be situated on the shock absorber or its gas reserve.

Any connections between dampers are forbidden. The only connections permitted are the damper fixing points passing through the frame, these must have no other function.

7.3 – Antiroll bars
Only one antiroll bar per axle is permitted. The adjustment of the antiroll bars from the cockpit is forbidden. The antiroll bar systems must be exclusively mechanical, with no activation or deactivation possible. Any connections between front and rear antiroll bars are forbidden.  The diameter of the antiroll bars is free.

The diameter of the rim is set at a maximum of 14 inches, with a maximum tire diameter of 30 inches. Rims can be made out of aluminum or steel.

The use of tires intended for motor cycles is forbidden.

The fitting of intermediate parts between the wheels and the tires is forbidden.

Central nut wheel fixing is forbidden.

The use of the anti‐puncture systems approved by the Cross‐

Country Technical Working Group is authorized.

The use of any system for inflating / deflating the tires when the car is in motion is forbidden.

For 4x4 and 4x2, the inflating / deflating operation must only be carried out while the car is not in motion.

It is possible to use a 12v electric compressor from commercial network for tire inflation.

Vehicle should have two spare wheels maximum.

The braking system is free, provided that:

  • It is activated and controlled only by the driver
  • It includes at least two independent circuits operated by the same pedal (between the brake pedal and the calipers, the two circuits must be separately identifiable, without any interconnection other  than  the  mechanical  braking  force balancing device)
  • The pressure is identical on the wheels of the same axle, with the exception of the pressure generated by the handbrake.

The calipers must come from a series vehicle or from a catalogue of competition parts with a maximum of 4 pistons.

The discs must come from a series vehicle or from a catalogue of competition parts.


 10.1 – Sensors
Only possible:

Wheel speed sensor on one wheel only. To add 3 temperature sensors (engine oil, water, gearbox or CVT), 1 pressure sensor, 1 engine knocking sensor only, fuel level gauge and any sensors necessary for navigation system defined by organizer.

Fuel Avgas 100LL or any special fuels are forbidden.