SCCA® Solo classing — unofficial guide
What autocross class is a BMW M4 (G82, excl. MP susp./CSL)?
ASStreet
A stock 2020–2026 BMW M4 (G82, excl. MP susp./CSL) runs in AS (Street) under the 2026 SCCA Solo Rules.
Class by preparation level
| Stock (Street) | AS |
| Street Touring | — |
| 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
XA/XBXtreme Street
From the 2026 rulebook (Appendix A)
Street: 'M4 (excl. MP Sports Suspension) (G82) (excl. CSL) (2020-26)' = AS; with MP suspension = SS.
Other AS 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.