I hope not. From someone who has never done a track day, and still wondering if I should or not, this video has put me right off!
As others have said this is not a normal track day.
It was £35 pre-booked to get on the track for a 15 minute session and £40 on the day. This makes it a cheap affordable way to get on track which nowadays seems to attract a lot of chav type idiots and no holds barred wanna be racers.
Back when I first started doing track days/action days like this in 1997 it was a lot quieter and safer with most people attending being fairly sensible. Heck when I first started doing it you didn't even have to wear helmets in tin top cars and you were allowed hand held VHS cameras the size of breeze blocks in the car.
It's a shame really as these track/action days used to be a great way to get on track especially for beginners, amateurs or people who couldn't afford the more expensive track days.
As Jetpilot/docwra & a few others have said the best way nowadays seems to be either on a club/forum arranged track day or the dedicated track days arranged by the circuits themselves or dedicated companies like MSV, Trackdays.co.uk etc.
Link: http://www.trackdays.co.uk/tracks/castle-combe.htm
Link: http://www.msvtrackdays.com/car.aspx
They cost more money to do with prices starting from around £99 for a full day but most have an open pit lane policy and are much better managed.