You might consider driving down the night before the event in order to stay at a hotel near the track. Yes, it is a bit of a ways to Shelton from Seattle, but the drive is more than worth it! You will definitely get a chance to test your car’s performance on this track.
There is now a newly completed go-kart course that mimics the full track! So even spectators can get a little taste of what it’s like to drive the course.
Make sure you get your car inspected before this event by completing the forms found at http://www.bmwpugetsound.com/track/requirements
For additional information please see: http://www.bmwpugetsound.com/track/driving-schools/