WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Audi TTS (Mk2)?

DSStreetBSTStreet Touring

A stock 2009–2015 Audi TTS (Mk2) runs in DS (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: 'TTS (2009-15)' = DS; 'TTS (2016-20)' = BS. ST: 'TTS quattro (2008-15)' = BST.

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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.