OK, I'm all booked up with the wekend display pass using the code, which actually works and gets you to a booking page with "X1/9 Owners Club" on it.
Didn't know you could get on there on Thursday. I'll do that as well, I've got a B&B I can walk to for Thursday night. What times are there access on Thursday? I couldn't see anything about that on the site.
Her Maj's back isn't up to camping, so we're going to have to stay off site. As it happens she's working Friday, so will drive down separately. Public car parking at the circuit is free, so we can leave the X1/9 on the stand & use the ordinary car to get to and from a hotel, where the bed, brekky and shower will be lovely.
PS: As it happens I asked them about access, and the reply just came in. Ms. Silverstone says:
Thanks for your message, you are correct with your thoughts, car club vehicles are free to leave site and re-enter every day. The busiest one tends to be Saturday so it would probably be worth arriving around 7.30/8am to make sure you can gain access in good time, and this of course gives you a full day to enjoy all the Classic has to offer.
I think it opens at 07:30 for club exhibitors.
They really important part is to get a long, long way away on the Sunday before Rick Astley starts. Sorry, Rick, gonna give you up.
PPS: Do we get told which gate to use to get cars on?