Try Bleu Sud, we've been on there for the last 3 years. We have had no problems finding a good sized pitch on the overflow, arriving on Thursday afternoon, friday is a different matter.
Security wise we have had no probs apart from the sunday evening pikey invasion, but the benefit of Blue is that you can be down the back roads and away straight after the champers. We have never had a traffic jam yet! Getting in and out during the race is a doddle too. Its a longer walk back to the tribunes etc. but a walk through the white carpark is no hardship, loads of tasty motors to keep you happy
The site has a good atmosphere, not too roudy, just right and getting a bit of kip is just about possible without earplugs!. The Lotus seven club takes up a lot of space but puts a band on on the Sat night and youre in a good spot for Fridays drag racing too.
Only drawbacks are that the overflow site (the field above it along the lane) has no bogs, electric or water, but we take our own, its just a matter of being prepared!!
give it a try
