14. Miscellaneous
14.1. Vehicles must not use racing style numbers nor carry advertising other than event sponsor decals. Permitted Fuel must be used as defined in Chapter 1 App. 1( Nomenclature and Definitions).
14.2. Where an Event includes any Section or Special Test held wholly or in part on private property all Vehicles must carry a Small Spill Kit complying with NCR Regulations and which is recommended for Events held wholly on the Public Highway.
14.3. For events in accordance with App. 15 Art. 5.11, retro fitted gas discharge or LED headlamp units are permitted.
15. Standard Production Cars compliant with Art. 9.2. c and d. must comply with Arts. 9.3 – 14.2 inclusive and the following regulations:
a.
Body( External). No changes or additions may be made to the side or plan silhouettes to that offered by the manufacturers in either standard form or manufacturer’ s optional extra form. The replacement of any body panel with one constructed of different material from that fitted by the manufacturer is prohibited. Front and rear bumpers must be retained and be of the same dimensions and constructed of the same material as those fitted by the manufacturer
b. The fitting of any form of additional wheel arch extension is prohibited. c.
d.
e.
Engine. The engine fitted must in all respects conform to that fitted by the manufacturer for the model of Vehicle.
To ensure oil and / or fuel are not deposited on the Public Highway sumpguards and tankguards may be fitted. It is permitted to fit a guard or guards to the silencing system that must retain at least the same number of silencer boxes and expansion chambers as catalogued for the Vehicle.
Transmission. The gearbox shall be that as fitted to the model of Vehicle. Changes to the gearbox or final drive ratio other than those permitted by Art. 9.4 are prohibited.
Motorsport UK 2025 National Competition Rules Version 11
Chapter 13 Appendix 15- Technical Regulations- Road, Endurance and Historic Road Rally Cars
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