WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Pontiac Solstice GXP (Turbo)?

BSStreetASTStreet Touring

A stock 2007–2009 Pontiac Solstice GXP (Turbo) runs in BS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within AST tire and wheel limits), it runs AST.

From the 2026 rulebook (Appendix A)

Street: 'Solstice GXP (Turbo) (2007-09)' = BS; ZOK Club Sport pkg (N/A) also BS. ST: 'Solstice GXP' = AST.

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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.