WhatClassAmIAutocross Classing Guide

SCCA® Solo classing — unofficial guide

What autocross class is a Cadillac CT4 (non-V)?

DSStreet

A stock 2020–2026 Cadillac CT4 (non-V) runs in DS (Street) under the 2026 SCCA Solo Rules.

From the 2026 rulebook (Appendix A)

Street: 'CT4 (non-V, non-Blackwing (2020-26)' = DS (rulebook has unbalanced paren typo). CT4-V = BS.

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.