SCCA® Solo classing — unofficial guide
What autocross class is a Toyota GR Supra (MkV, 6-cyl)?
BSStreetSSTStreet Touring
A stock 2020–2026 Toyota GR Supra (MkV, 6-cyl) runs in BS (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: 'Supra (6 cyl, non MkV Final Edition) (2020-26)' = BS. ST: 'Supra, 6cyl (2020-26)' = SST. 4-cyl: CS street / SST.
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.