I went to this last year with Supercar-driver - really recommend it a great day and walk around the where the lorries are parked up at the back with the cars been worked on, you can get up close and personal with some very nice toys Vulcan etc
A little late, but if anyone is intrested I have a free ticket for tomrrow thanks to one of the Supercar clubs sponsers as the person going with me has had to drop at the very last min.