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.
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.
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.