SCCA® Solo classing — unofficial guide
What autocross class is a Porsche 944 (8v)?
ESStreetCSTStreet Touring
A stock 1983–1989 Porsche 944 (8v) runs in ES (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within CST tire and wheel limits), it runs CST.
Class by preparation level
| Stock (Street) | ES |
| Street Touring | CST |
| Street Prepared | — |
| Street Modified | SSM |
| Prepared | — |
A “—” means the car isn’t listed at that level; a build lands in the least-prepared category its modifications allow.
From the 2026 rulebook (Appendix A)
Street: '944 (8v)' = ES (years approximate). ST: '944 (non-turbo)' = CST. 16v = CS.
Other ES cars
Unofficial guidance verified against the 2026 SCCA® Solo® Rules — always confirm against the current rulebook before competing. Classing data cites the exact Appendix A wording it relies on. Spot an error? Report it on GitHub.