We did this discussion a while back, and it's just simply not a viable option.

The legal implications, insurance, etc etc are so large, it just wouldn't be worth considering, especially when PassionFord isn't a club.

Personally I also think it's a terrible idea. You have to have something to keep people at shows, and track action usually suffices. Without it, most people have been around the scene long enough not to want to bother looking round a car park.