CHAPTER 16 AUTOCROSS AND RALLYCROSS AND OFF-ROAD RACING PART B( RALLYCROSS) Appendix 10- Technical Regulations
1. Rallycross Vehicles 1.1. Racing Cars are prohibited.
1.2. Vehicles will be classified as detailed in the Official Documents. They must be of rigid construction and comply with the regulations below. They must have been homologated in Group N, A or B of FIA Appendix J or in groups 1, 2, 3 or 4 of 1981 FIA Appendix J( although homologation may have lapsed) or commercial vehicles specifically approved by the ASN.
1.3. Vehicles complying with current FIA Appendix J Article 279 regulations, in their entirety, are also permitted, even where homologation may have lapsed.
1.4. * Mass-produced non-homologated Vehicles may be accepted for events up to National level.
1.5. Rallycross Vehicles in compliance with Ch. 16, Appendix 11 Part B and issued the Rallycross Space Frame Vehicle Identity Form( RXVIF). The Vehicle may not be used in Competition until the Vehicle Identity Form has been validated by the ASN and returned to the Vehicle owner.
1.6. Rallycross Vehicles of mixed construction being part Spaceframe, part Unitary Construction or other, issued with a Competition Car Log Book / Vehicle Passport prior to 31st December 2016 and complying with specific regulations approved by the ASN.
1.7. Rallycross Spaceframe Vehicles issued with a Competition Car Log Book / Vehicle Passport prior to 31st December 2016 complying with Championship Technical Regulations approved by the ASN( Art. 46 applies).
1.8. Rallycross electric Vehicles specifically approved by the ASN. Additional safety training and requirements will be an integral element of the application and approval.
2. Body( including Aerodynamics)
2.1. The Vehicle must have a bulkhead separating the cockpit from the engine compartment. It must retain its original material and location compared to the standard car. Installing components up against or passing through this bulkhead is permitted providing nothing protrudes into the cockpit more than 200mm( as measured perpendicularly to the bulkhead). This will be measured at the point of intrusion, and parallel to the ground. If the protrusion includes the engine, the cam / valve cover may not extend further back than the forward most point of the windscreen aperture when viewed directly from above. For Scrutineering purposes a 13mm diameter hole must be drilled at the forward most point of the screen aperture.
2.2. Bumpers and supports if fitted must both be as originally fitted to the mass-produced vehicle. No reinforcing of bumpers or supports is permitted. If one bumper is removed, then both must be along with all supports.
2.3. Reinforcing the front apron is not permitted. 2.4. Any undertray must be provided with drainage holes to prevent accumulation of liquids.
2.5. The windscreen must be of either laminated glass or polycarbonate of the required thickness. No apertures will be permitted in windscreens. If fitted with a glass or polycarbonate windscreen the Vehicle must have an operative wiper / washer system. All Drivers must wear approved goggles or visors, unless the Vehicle is fitted with a polycarbonate windscreen. A wire mesh stone guard adequately fitted to the bodywork and with a minimum matrix of 1in is permitted with any type of windscreen. Tinted glass in any window which can significantly affect through vision( in or out) or distort the colours of signal flags or lights is prohibited( see Ch. 7 App. 2 Art. 6.17).
2.6. When viewed from above wheels must be covered by rigid material at all times. The outside shape of the original coachwork must be retained except around the wings.
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 16 Part B( Rallycross) Appendix 10- Technical Regulations 592