You can hire Castle Combe for £6K / day, but your only allowed 13 riders out at any one time because of the noise limits
So at £100 each, that's 5 groups
Goodwood's £12K, and 5 vehicles at a time
Both are 105dB.
Pit lane marshall at Cadwell was telling me last week that ESS holds their record for fallers in a single day......
