Vehicle Rules

Seats and harnesses
A min 4-point harness must be fitted and be of decent quality with no rips or frays to the
construction. (These do not need to be in date) Harnesses must be attached securely to the

vehicles body or roll cage (not to the seat frame) for both driver and passenger. Shoulder
straps mounted as per the manufacturer’s recommendation (as horizontal as possible).
Recommended – 75mm straps with safety belt eyes installed with a 2” x 2” spreader plate
underneath vehicle to stop any fixing pulling through floor under any hard impact, unless
original belt mounting points are used.
The shoulder harness should be secured directly behind the seats.
Driver’s/passenger seat must be bucket style and must not be damaged. (These do not
need to be in date)
The passenger seat may be removed altogether. At some venues, it MAY be possible to
carry passengers, if so, the passenger seat must be to the same standard as driver’s as
should the harness. (These do not need to be in date)
Rear seats must be removed completely.
ALL seats must be securely fitted, as well as harnesses.
Recommended – Competing vehicles to have an FIA approved racing seat for the driver and
passenger. This does not need to be ‘in date’ but must be in good condition with no stress
damage or cracks.
Seats must be fixed with a minimum of four 8mm high tensile bolts constructed to ISO 8.8
or above. If not using the factory mounting points on aftermarket sub-frames the seat
fixings must be attached to 125x125mm spreader plates.

Roll cage
A min 6-point roll cage must be fitted including a single door bar, this can be either bolt in
or of welded construction
Roll cages must be of CDS or T45 only.
Recommended – The main hoop of the cage to be constructed from 45 x 2.5mm or 50 x
2mm tube
38 x 2.5mm or 42 x 2mm tube is permitted for all other parts of the roll cage. A 1mm
tolerance in tube sizes will be permitted.
All joints to be welded or be secured by a 2-bolt fixing using high-tensile fasteners produced
to ISO 8.8 or higher.
Cages to be bolted or welded to the vehicle body using plates that are a minimum of 3mm
thickness and are no smaller than 125x125mm square. If the cage is a bolt-in type there
should be an additional plate on the underside of the vehicle secured with 3 bolts for the
main hoop and two bolts for all other fixing points – all bolts should be high tensile, built to
ISO 8.8 or better and be a minimum 8mm diameter.

At least one diagonal bar to be used in the rear of the cage construction (either in the main
hoop or across the rear diagonals) – this bar must be straight in its construction. The upper
end of the diagonal bar must join the main hoop no further than 100mm from a rear
diagonal and should connect to the opposite diagonal no further than 100mm away from the
rear mounting point.
The roll cage should not extend beyond the center line of either the front or rear wheels.
Apex/Cusco style dash dodger cages are NOT permitted at all.
(Dash dodger refers to those cages with the S style bend in the front cage leg to curve
around the standard dash)
Door Bars
Single door bars are required on the driver’s side of the vehicle.
If you wish to provide passenger rides at any event the passenger side of the vehicle will
also require an appropriate door bar.
Door bars can be removable however they must be secured correctly using appropriate
brackets and high tensile 10mm (minimum) bolts produced to ISO 8.8 or higher.

Double door bar (‘Nascar Style’) or ‘X’ type bar.

Roll Cage Padding. Any part of the roll cage within 150mm of the drivers or passengers
helmet must be fitted with appropriate padding to provide protection in the event of an
We recommend that this is flame resistant padding and that any materials used to secure
the padding (i.e. Cable Ties) are secured in a safe manner.
Convertible Vehicles
Convertible vehicles do not require a hard top to compete but the soft top must be secured
in the ‘up’ position whilst on track.
Convertible vehicles require a ‘X’ in the cage above the driver/passenger area

Fire extinguishers
A min 1ltr hand held fire extinguisher must be fitted and within reach of the driver when sat
in the seat with harnesses fitted. This should be mounted in an approved cradle or bracket
A min 2.25ltr plumbed in fire extinguisher system must be fitted with two nozzles. One
pointing towards the inlet side of the engine and the other pointing towards the driver’s
Two fire extinguisher pulls must be fitted. One inside within the reach of the driver when sat
in the seat with harnesses fitted, the second to be fitted outside the vehicle, on the

passenger side in or around the base of the window screen and clearly marked with safety

Electrical cut off
An FIA electrical cut off must be fitted and within reach of the driver when sat in the seat
with harnesses fitted.
An electrical cut off pull must be fitted to the outside of the vehicle, on the passenger side in
or around the base of the window screen and clearly marked with safety sticker.
Recommended – Batteries must be securely mounted and in a good serviceable condition.
Any leads connected to the battery must be correctly insulated and correctly marked to
show positive and negative terminals.
If the battery is mounted within the passenger compartment it must be held within a
sealed/insulated box.

Front windscreen must be standard and not cracked or broken.
Drivers and passenger’s door glass can be replaced with polycarbonate windows. Window
nets can be fitted and are permitted. These should be screwed or bolted securely in place
and must not inhibit driver visibility. Windows or sliding hatches can be open on the driver’s
side but by no more than two inches.
Rear screens can be replaced with polycarbonate.

Fuel cells
If motorsport fuel cells are fitted within the vehicle, a metal firewall must be fitted between
the driver and the fuel cell.
Recommended – Fluid Hoses. Any lines used to carry fluids through the vehicle must be one
continuous length or braided with proper joiners. These hoses should be run along the
passenger side of the vehicle away from any hot or moving parts and should be
appropriately protected from any exposed metal edges.
For your safety, we recommend that all fluid lines are routed on the underside of the vehicle
and protected accordingly. Any pipes, lines or fittings should be secured every 100mm along
their length.
Fuel Systems If the fuel filler is located within the boot area there should be a suitable
splash bowl with a drain to the outside of the vehicle or other suitable drainage holes in

We will not allow any vehicle with a fluid leak to compete. Any leaks will void the vehicle
from competition.

Tow points
Tow straps or tow eyes must be securely fitted to the front and rear of the vehicle.
Recommended – Tow Points should be clearly visible or highlighted with a ‘Tow’ sticker. We
recommend that the towing eyes or loops are a bright colour or contrast with the vehicle to
make them clearly visible to any track staff or marshals.

Additional recommendations –
Bodywork should be fitted to present a completed car. Front and rear bumpers, bonnet,
boot-lid (side skirts if fitted) should be present at every round and securely fastened to the
Car sunroof; Theses must have all glass removed and be replaced with a metallic item fixed
securely in place.
All cars should have fully working and visual rear brake lights, front headlights are not as
important but need to be in place within reason.
Body Panels; all opening exterior panels (i.e. doors, bonnets and boots) must be accessible
with operational handles and locking systems from the exterior of the vehicle.
If a bonnet or boot lid has been cut down to a single skin or has been replaced with a
lightweight aftermarket alternative, it must be secured with appropriate pins/catches.
All bodywork must be secure and attached to the vehicle. Bodywork must not feature any
sharp or dangerous components.
Wheel Studs
Aluminum wheel studs should not be used.
Catch Tanks
Catch tanks for oil or water should be visible and easily checked by scrutineering and track
Tanks should be checked before each round of competition to ensure they will not overflow.