This is a really great day, run in aid or Dementia UK.
I last went a couple years ago, great lunch in the restaurant, guest speaker and pro drivers usually available,
Very low key and usually pretty quiet.
My advice is book lunch and the afternoon session as people leave early and the late afternoon traffic is very light.
Cost is £285, including lunch for two it's £355.
Link : https://www.dementiasupport.org.uk/track-day
Rupert