WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Porsche 911 (996 Carrera family)?

BSStreetSSTStreet Touring

A stock 1998–2005 Porsche 911 (996 Carrera family) runs in BS (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: '911 (996 Carrera, 4, 4S) (1998-2005)' = BS. ST: '911 (996, non-turbo) (1998-2005)' = 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.