WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a BMW M5 (F90, incl. Competition)?

BSStreet

A stock 2017–2023 BMW M5 (F90, incl. Competition) runs in BS (Street) under the 2026 SCCA Solo Rules.

From the 2026 rulebook (Appendix A)

Street: 'M5 (incl. Competition, 2017-2023)' = BS; M5 CS (2022) = SS.

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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.