SCCA® Solo classing — unofficial guide
What autocross class is a Chevrolet Cobalt SS (2.0L Supercharged)?
HSStreetDSTStreet Touring
A stock 2005–2007 Chevrolet Cobalt SS (2.0L Supercharged) runs in HS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within DST tire and wheel limits), it runs DST.
From the 2026 rulebook (Appendix A)
Street: 'Cobalt SS (2.0L SC) (2005-07)' = HS. ST: 'Cobalt (2.4L N/A & 2.0L S/C)' = DST.
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.