WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Porsche Boxster & Cayman (987.2 base)?

BSStreetBSTStreet Touring

A stock 2009–2012 Porsche Boxster & Cayman (987.2 base) runs in BS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within BST tire and wheel limits), it runs BST.

From the 2026 rulebook (Appendix A)

Street: 'Boxster (987.2 base) (2009-12)' / 'Cayman (987.2 base) (2009-12)' = BS. ST: 'Boxster/Cayman (987.2 & 981.1) (2009-16)' = BST.

Check this car with your mods →Browse all cars

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.