SCCA® Solo classing — unofficial guide
What autocross class is a Pontiac Firebird Trans Am & Formula (WS6)?
FSStreetBSTStreet Touring
A stock 1998–2002 Pontiac Firebird Trans Am & Formula (WS6) runs in FS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within BST tire and wheel limits), it runs BST.
Class by preparation level
| Stock (Street) | FS |
| Street Touring | BST |
| 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
CAM-TClassic American Muscle
From the 2026 rulebook (Appendix A)
Street: 'Firebird Trans Am & Formula (WS6, base car only, incl. GM-installed 1LE) (1998-2002)' = FS. ST: 'Firebird (N/A)' = BST.
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.