WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a BMW M3 (E30)?

CSStreetDSTStreet TouringDSPStreet Prepared

A stock 1988–1991 BMW M3 (E30) runs in CS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within DST tire and wheel limits), it runs DST.

From the 2026 rulebook (Appendix A)

Street: 'M3 (E30) (1988-91)' = CS. ST: '3 Series (E30 chassis, incl. M3)' = DST. SP: 'M3 (E30 chassis)' = DSP.

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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.