SCCA® Solo classing — unofficial guide
What autocross class is a BMW M3 CS & M4 CS (F80/F82)?
ASStreet
A stock 2018–2020 BMW M3 CS & M4 CS (F80/F82) runs in AS (Street) under the 2026 SCCA Solo Rules.
From the 2026 rulebook (Appendix A)
Street: 'M3 CS & M4 CS (2018-20)' = AS. The SST F8x listing is non-CS only.
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.