WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a BMW 320i (F30/F31/F34)?

GSStreetBSTStreet Touring

A stock 2014–2019 BMW 320i (F30/F31/F34) runs in GS (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: '320i (F30/F31/F34) (2014-19)' = GS. ST: '3 Series Turbo (Non-M) (2007-26)' = 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.