Jonathan: I think I entered the wrong class, but no probs, a fun weekend as you know. However, we are in a nice position in the paddock / program!
Major:
The first one is a real one-off.
The car is a Prosport that morphed into the Ultima I think. It would have had a Ford V6 at the time. The boat engine would normally be vertical
The engine there (USA origin) is a 6 pot 2 stroke boat engine and a CV box. It took an age to get it sorted, but ran out of pace for the owner/builder who I think became ill and the car was offered for sale several years ago.
The home spun engineering was quite something to see. Very hard to silence it too.
The second is a McLaren M12C, but there were 2 of them roaming around on the roads and hills, hence me not being too sure which of the 2 this one is, Jonathan may recall better. Car in my class belongs now to Geoff Tatham's son Dave. I think Dave's car is red, but not sure. Rare to see either.
Found these old pics in my PC looking for someone else; thought they might be of interest.