It's a sweet track, when it was open it was the first place I went gokarting at and it was wet at the time. The guys were all like "no being stupid out there now" but after a few laps of watching us get completely sideways round every corner they were cheering us on!
But yeah, I've always wanted to get a car on there and tossed this idea round before. Would require lots of badgering of the council I'd say and a pretty hefty insurance premium but I would love to help out however I can. Good Luck!