WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Saturn Sky (non-turbo)?

CSStreetCSTStreet Touring

A stock 2007–2010 Saturn Sky (non-turbo) runs in CS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within CST tire and wheel limits), it runs CST.

From the 2026 rulebook (Appendix A)

Street: 'Sky (non-turbo) (2007-10)' = CS; Redline (Turbo) = BS. ST: 'Sky (non-turbo)' = CST.

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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.