I've done it 5 or 6 times now in various cars, twice in my old Aero, it is on redundant tarmac at the airfield.
The day starts with a 90 deg left hand bend that you take at increasing speed, if you spin (most do) there is loads of run off, no danger of hitting anything (they have a speed camera so you know your turn in speed)
Next the group is split in two, to drive two sprint courses set out with cones.
Finally in the afternoon both courses are combined to form one course (approx 75 seconds from memory)
Only one car out at any time so unlike trackdays you won't get t boned by another car.
Im about 2 hours away, getting there is ok, but can be a bit of a drag travelling home round the m25 at 5pm on a Friday afternoon.