SCCA® Solo classing — unofficial guide
What autocross class is a Porsche 914?
CSStreetESTStreet Touring
A stock 1970–1976 Porsche 914 runs in CS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within EST tire and wheel limits), it runs EST.
Class by preparation level
| Stock (Street) | CS |
| Street Touring | EST |
| 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: '914 (all)' = CS (years approximate; listing has none). ST: '914 (4-cyl)' = EST; the 914/6 has no ST listing.
Other CS 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.