WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a BMW M3 & M4 (F80/F82, non-CS)?

BSStreetSSTStreet Touring

A stock 2015–2020 BMW M3 & M4 (F80/F82, non-CS) 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: 'M3 & M4 (F80/F82 chassis; non-CS) (2015-20)' = BS. ST: 'M3 & M4 (F80/F82; non-CS, non-GTS) (2015-20)' = SST. CS versions = AS.

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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.