David has the driver surname (I thought, and wrote at the time Clive) but no-one is close on the venue yet. I was talking with the creator of the Minimax, Max Rutherford at Taupo at the weekend. He has done a magnificent job of the resto of the JBS.
Apparently the Minimax was created as a speedway TQ and "multi used" a lot before being sold, and rear engine cars banned from speedway (at least TQ). He was considering a replica of the 'max.