SCCA® Solo classing — unofficial guide
What autocross class is a Saturn Sky (non-turbo)?
CSStreetCSTStreet Touring
A stock 2007–2010 Saturn Sky (non-turbo) runs in CS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within CST tire and wheel limits), it runs CST.
Class by preparation level
| Stock (Street) | CS |
| Street Touring | CST |
| 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.
Also eligible for
CAM-SClassic American Muscle
From the 2026 rulebook (Appendix A)
Street: 'Sky (non-turbo) (2007-10)' = CS; Redline (Turbo) = BS. ST: 'Sky (non-turbo)' = CST.
Other CS 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.