Came across this forum reading an old edition of Track & Race Cars where they featured a trackday that was run by BigPower.
We organise trackdays ourselves through http://www.trackscotland.co.uk - mostly in scotland, but have one at Brands Hatch - http://www.trackscotland.co.uk/forums/v ... .php?t=144
Cars:
Track car is an R32 GTR with a few additions

and an old 911 3.0 to potter around in

Adam & Fee