SP SP slider 2017

Sport Specials

Descriptions, regulations and registration for the Sport Specials Formulae.

Sponsored by Protech Shocks
Sponsored by Protech Shocks

Protech Shocks Sport Specials Championship

Catering for genuine ‘production’ Sport Specials, Kit Cars, Caterhams and Westfields as well as 'one-off’ road-going two-seater specials, all using production car engines with modifications.

There are two classes divided by power-to-weight at 340bhp/tonne (A) and 270bhp/tonne (B), plus a third class for the MX150R (C).

A 340bhp/tonne, forced induction and 4WD not permitted.
B 270bhp/tonne, maximum 1840cc, forced induction and 4WD not permitted.
C MX150R models, forced induction permitted, 4WD not permitted.


Type of suspension both front and rear including springing medium and pick up points is free. Dampers are free. Rose joints may be used.


Four/six-pot calipers allowed depending upon class. No ABS.


Gearbox and diff must be from a production car. Close ratio gears are permitted, maximum 5/6-speed depending upon class.


Any MSA list 1A/1B/1C tyre.


There are 14 rounds in the 2018 season spread across seven 'double-header' race weekends, of which the best 12 count for the Championship.


Club membership is just £25 for 12 months, season registration is £130, and double-header weekend entry fees (qualifying and 2 x 15min races) are typically between £245 and £345 depending on the circuit. Eligible cars are available secondhand from just £5000.