Central Valley
Buttonwillow is SDC's home turf — the 40-car cap and the Classic CW13 config keep the rotation tight and the lap count high. Regulars know each other by name; first-timers get folded into the run-group structure on the Beginner Days specifically.
Registration required. Pre-register before the event; walk-ups may not be admitted.
OverviewSoCal Drivers Club runs Race All Day track days at Buttonwillow Raceway Park in the Central Valley. Their flagship Classic CW13 configuration days are capped at 40 cars to keep the field tight and the run-group rotations dense. The schedule mixes those Classic days with a Beginner Day program that opens dedicated run groups for newer drivers (Beginner / Intermediate / Advanced). Pre-GTA-Finals special editions land at the end of the year. Registration on SDC's site.
Good to knowClassic CW13 configuration, capped at 40 cars on the standard days. Multi-run-group format on the Beginner Day editions (Beginner / Intermediate / Advanced). Coaching available and SDC's Drive Rental program offers race-prepped cars. Pricing and registration on SDC's site.