WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Ford Mustang Shelby GT350R?

SSStreet

A stock 2015–2020 Ford Mustang Shelby GT350R runs in SS (Street) under the 2026 SCCA Solo Rules.

From the 2026 rulebook (Appendix A)

Street: 'Mustang Shelby GT350R (2015-20)' = SS.

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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.