I understand the GTFO. Why don't you post a schedule for 700 cars and 2? some classes.
It's not too hard. classes A, B, C and D run on Wednesday. they each have 30 min practices (2hrs), they each have 30 min quals (2hrs), they each have races (3 hours). That's a 7 hour day with lots of slack and a lunch. Next day you do it all again with classes E, F, G, and H. Event totally finished in 5 days, 10 days if we add a test day before each race day (which would f*ing rock).
But boo hoo, we gotta pretend people care about other classes and be social. F* that.
You'll note this plan also vaporizes any crowding issues since there should only be about 150 trailers on site at any one time and allows runoffs at smaller venues. You're welcome folks!