Hi Phil
The theme tomorrow is 'Performance cars' which they've defined as 'fast with 4 wheels' which opens the field up somewhat.
Parking in front of the house is directed by the stewards who will no doubt decide what they want and what they don't, and with a couple of convoys being organised on PistonHeads I 'd suggest that the earlier folk arrive the more chance they will have of parking in the garden rather than the outer car park. It will still be a good bash though.
I'm meeting a 3200 at Solstice Park near Amesbury sometime after 8.00am (it's alongside the westbound A303 just before Countess roundabout).
See you there?
PH