I just finished a carguys event this weekend at VIR in the full course..
OMG was it hot. Track temps getting up to 140+ degrees. Poor tires didn't like it after a couple laps but atleast the car was pretty predictable in a slide.

And a good tip is to bring as much gas as you can with you.. Or atleast a good can full and fill up before you get to the track. Gas in the track is 4.somthing a gallon for pump gas.

And I would also recomend the carguys events as they limit the number of people in them.. so you never really get crowded or catch up to a train out on the track.