SCCA® Solo classing — unofficial guide
What autocross class is a Mazda Mazda3 (non-turbo)?
HSStreetESTStreet TouringFSPStreet Prepared
A stock 2004–2026 Mazda Mazda3 (non-turbo) runs in HS (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) | HS |
| Street Touring | EST |
| Street Prepared | FSP |
| Street Modified | SMF |
| Prepared | — |
A “—” means the car isn’t listed at that level; a build lands in the least-prepared category its modifications allow.
Also eligible for
XA/XBXtreme Street
From the 2026 rulebook (Appendix A)
Street: 'Mazda3 (non-turbo) (2004-26)' = HS. ST: 'Mazda3 (non-turbo)' = EST. SP: 'Mazda3' = FSP.
Other HS 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.