SCCA® Solo classing — unofficial guide
What autocross class is a Porsche 911 (996 Carrera family)?
BSStreetSSTStreet Touring
A stock 1998–2005 Porsche 911 (996 Carrera family) runs in BS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within SST tire and wheel limits), it runs SST.
Class by preparation level
| Stock (Street) | BS |
| Street Touring | SST |
| 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: '911 (996 Carrera, 4, 4S) (1998-2005)' = BS. ST: '911 (996, non-turbo) (1998-2005)' = SST.
Other BS 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.