This event is coming up and offers what most people are always asking for at an autocross: a longer track and more speed.
http://www.lonepinetimetrials.com/
The history of the site and it's location in the Owens Valley are beautiful and cause for reflection.
https://www.youtube.com/watch?v=HoHh7j4zqKk&t=24s
The speed of the event is not what brings me coming back, it's the speed I can maintain when driving the offsets on the 8000 foot runway. The dog leg at Buttonwillow gets really narrow above 100 mph. Having a wide runway to work with allows you the room you might need to find the edge, and yes beyond.
https://www.youtube.com/watch?v=41gCAhytPgI
Locations and events like this are getting harder to find, hope you add it to your list.
David