Three-mile HPDE at Thunderhill's North Course—great for drivers working on smooth lines and consistent pace without the commitment of a full day. If you want seat time to dial in your driving in a less crowded setting, this shorter format is perfect for testing what you've been working on between bigger events. Full details & registration: https://www.motorsportreg.com/events/thunderhill-november-run-3-mile-raceway-park-hooked-on-driving-northern-948007