SCCA® Solo classing — unofficial guide
What autocross class is a Mazda MX-5 Miata (ND)?
CSStreetASTStreet TouringCSPStreet Prepared
A stock 2016–2025 Mazda MX-5 Miata (ND) runs in CS (Street) under the 2026 SCCA Solo Rules. Built to Street Touring allowances (within AST tire and wheel limits), it runs AST.
From the 2026 rulebook (Appendix A)
Street: 'MX-5 Miata (ND1/ND2 chassis; including RF) (2016-25)' = CS. ST: 'MX-5 Miata (2016-26)' = AST. SP: 'MX-5 Miata (ND chassis, all) (2016-25)' = CSP.
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.