if you have paypal they have made it super easy to preregister now, you just email them the completed registration form and paypal them the $$. its painless.
You can leave between 8:30 and 11 and have to be back by 5. Total drive time is 3 hours 120 somethin miles. But we usually spend a good bit of time at the wild card hill climb. And we stopped for a picnic lunch last year.
I would like to roll out around 9am like we did last year. That gave us plenty of time to stop for a lunch break and to hang out at the hill climb for a while.