Tomorrow from 4:00 to 10:00 pm there is a car lapping session, it is like a half day but in the evening. If you have lights you can run until 10:00, if not the will pull you after dusk when there is not enough light to safely see.
There will be a motorcycle one preceding the next MRA round at HPR.
I am going to take my Mustang out tomorrow, should be interesting!