SCCA® Solo classing — unofficial guide
What autocross class is a Porsche 911 (991.2, incl. GT3/Turbo)?
SSStreet
A stock 2015–2019 Porsche 911 (991.2, incl. GT3/Turbo) runs in SS (Street) under the 2026 SCCA Solo Rules.
From the 2026 rulebook (Appendix A)
Street: '911 (991.2 Carrera, T, 4, S, 4S, GTS, 4 GTS, GT3, Turbo, excl. GT2/GT3 RS/Turbo S) (2015-19)' = SS.
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.