SCCA® Solo classing — unofficial guide
What autocross class is a Ford Mustang Shelby GT350?
FSStreetSSTStreet Touring
A stock 2015–2020 Ford Mustang Shelby GT350 runs in FS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within SST tire and wheel limits), it runs SST.
From the 2026 rulebook (Appendix A)
Street: 'Mustang Shelby GT350 (incl. Handling Package) (2015-20)' = FS. ST: 'Mustang Shelby GT350 (2015-18)' / '(incl. Handling Package) (2019-20)' = SST. GT350R excluded from Street.
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.