Adam, this will be the first track day for me and my Dad in my Roadsport SV 150. although we are both familiar with track. After spectating at the event last year and taking a passenger ride, I feel pretty comfortable with the Caterham session where at least everyone is driving the same kind of car and tends to have a similar mindset.
Lap times around Oulton park are around 2 minutes, so even with 30 cars on track that is only one car every 4 seconds on average.