WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Toyota GR Supra (MkV, 4-cyl)?

CSStreetSSTStreet Touring

A stock 2020–2024 Toyota GR Supra (MkV, 4-cyl) runs in CS (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: 'Supra (4 cyl) (2020-24)' = CS. ST: 'Supra, 4cyl (2021-26)' = SST.

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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.