SCCA® Solo classing — unofficial guide
What autocross class is a Mazda RX-7 (non-turbo, FB/FC)?
ESStreetCSTStreet TouringCSPStreet Prepared
A stock 1979–1991 Mazda RX-7 (non-turbo, FB/FC) runs in ES (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within CST tire and wheel limits), it runs CST.
From the 2026 rulebook (Appendix A)
Street: 'RX-7 (non-turbo)' = ES (years approximate). ST: 'RX-7 GSL/GSL-SE/GXL/GTU (1988)' trims = CST; 'RX-7 (non-turbo, NOC)' = EST. SP: 'RX-7 (non-turbo) (1978-85)'/'(1986-92)' = CSP.
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.