Get three miles of track time at Thunderhill's October Regional test day. This open session at the Willows, CA circuit is perfect for drivers who want seat time without the pressure of competition—ideal for track rookies or anyone testing setup changes. Bring your street car or race car and dial in your driving. Full details & registration: https://www.motorsportreg.com/events/3-mile-open-test-sfr-october-regional-thunderhill-raceway-park-703617