TEMAC, and methinks those pics are from the 1993 Worlds. If you look very, very closely, you'll see me doing my Race Director's bit in the race control caravan!!
That was a great track, as was the tarmac track and oval behind it. Trashed by vandals and sadly didn't last long after that big event.
All my off-road experience was on grass or dirt, with a very early showing of a bit of astro at the original EPO track in Kent. Best tracks in those days for me were Taunton and Southport, both a challenge.
Those were my days!