You know how I found it so quickly? I was curios about Cars' guess and I think I know what happened.
I just googled "1966 Brabham BT22/1" and found the puzzle car...it was the previous one!
That explains what was a very weird answer! Well solved, and another point to your massive total.
It was a venture by Paul Emery's son Peter, and was supposed to be named Elfin, but everybody called it an Emeryson, and the name has been used ever since. It's nothing to do with the Australian Elfin marque.
