Sounds like a lot of fun, I did a day there with Honda last year on S2000's Civic Type R's, but they told me there was a 70mph limit and started to twitch at much over 100.....

SS7
PS That's the say, the instructors twitched, not the cars (which were very nice, thanks)

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Carrara white pauper's 2.7
Snickers wrapper in the door bin
Flies on the number plate
Church's scuffs on the kickplate
'Goodwood' umbrella in the back