Get five miles of wheel time on Thunderhill's full 3-mile circuit at this open test session. Perfect for drivers wanting to dial in setup, test new parts, or just get comfortable with the track before committing to a full day event. Bring your road course car and make the most of an uncrowded day. Full details & registration: https://www.motorsportreg.com/events/5-mile-open-test-lucky-dog-thunderhill-raceway-park-677008