CHAPTER 17 TRIALS Appendix 3- Technical Regulations – Classic Reliability Trial Vehicles
Note:( 1) * indicates that additional information must be provided in the Official Documents Note:( 2) This Appendix must be read in conjunction with App. 2 and Ch. 7 1. General
Class
1.1. Classic Reliability Trial Vehicles will be classified as follows unless otherwise stated in the Official Documents:
Description
1 Front-engined, front wheel drive production Vehicles( including those fitted with Torque Biasing / Limited Slip Differentials).
2 Production cars built prior to 1941, and the following: MG TC, Morgan 4-4 Series 1, HRG 1100 and 1500, and Ford models( upright models to 1959) E04A, E494A, E4930A / B, E93A, E493A, and 103E. Dellow Mk 1,2,3 & Bucklers Mk 5 & 6, Pre 1941 Cars holding a current VSCC Buff Form, Non- production cars built from pre-1941 components individually approved.
3 Front-engined, rear wheel drive, production saloons( except Vehicles in Class 6).
4 Rear-engined, rear wheel drive production saloons up to and including 1300cc( except Vehicles in Class 7).
5( a) Front-engined production sports cars( except Vehicles in Classes 1, 6 and 90).( b) Vehicles in full HST Historic Class specification with fiddle brakes disabled.
( c) Non-production cars built mainly from pre-1941 components( except Vehicles approved for Class 2) individually approved. Such Vehicles may include some post war components including BMC A-Series engines up to 948cc, Reliant OHV engines, A Series Rear Axles, Ford 105E Series Back Axles, Tubular Frame Chassis. These Vehicles must have at least one operational European carburettor and run on tyres satisfying Art 7.13( Crossplies).
( d) Production cars eligible for Class 2, but running on radial tyres. 6( a) Rear-engined, rear wheel drive production cars( except Vehicles in Class 4).
( b) Front-engined production cars fitted with torque biasing differentials as standard equipment, or any other form of traction control as standard equipment, throughout that model range and unavailable without it from stock.
7( a) Production cars modified beyond permitted limits.
( b) Rear-engined production cars fitted with torque biasing differentials as standard equipment, or any other form of traction control as standard equipment, throughout that model range and unavailable without it from stock.
( c) Front engine cars manufactured on a limited basis conforming to an accepted specification. Where modified beyond the accepted specification these cars will be classified in Class 8.
8( a) Non production cars.( b) Rear-engined cars( except Vehicles in Classes 4, 6, and 7).
( c) Front-engined cars manufactured on a limited basis( except those in Class 7) including those which:
( i) Have the rearmost part of the front seat cushion( s) rearward of any part of the rear tyres, or( ii) Have a wheelbase less than 90in( 228.6cm)
90 Suzuki X90 Vehicles having the original engine block.
1.2. A current MOT certificate where appropriate must be produced at the Scrutineers’ request.
2. Safety
Motorsport UK National Competition Rules 2026 Edition 1
Chapter 17 Appendix 3- Technical Regulations- Classic Reliability Trial Vehicles
617