SCCA® Solo classing — unofficial guide
What autocross class is a Mazda MX-5 Miata (NA/NB)?
A stock 1990–2005 Mazda MX-5 Miata (NA/NB) 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 | DP |
A “—” means the car isn’t listed at that level; a build lands in the least-prepared category its modifications allow.
Also eligible for
From the 2026 rulebook (Appendix A)
Street: 'Miata (non-Club Sport 2003) (1990-2005)' = ES; Mazdaspeed Miata (2004-05) also ES. ST: non-turbo '94-'05 = CST; '90-'97 non-Torsen cars listed in EST (no aftermarket LSD in EST per §14.10.K); Mazdaspeed = AST. SM: not Appendix A-listed; placed by drivetrain/body (2026 Solo Rules, Street Modified). P: 'MX-5 Miata (1.6L & 1.8L, non-turbo) (1990-2005)' = DP.
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.