SCCA® Solo classing — unofficial guide
What autocross class is a Mercedes-Benz C63 AMG (non-Black Series)?
FSStreetSSTStreet Touring
A stock 2008–2021 Mercedes-Benz C63 AMG (non-Black Series) runs in FS (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) | FS |
| Street Touring | SST |
| Street Prepared | — |
| Street Modified | SM |
| 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: 'C63 AMG (non-Black Series) (2008-21)' = FS. ST: 'C63 AMG (non-Black Series) (2008-2021)' = SST.
Other FS 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.