[Graham]

Yes this was an idea I had when I was thinking of differentiating between metal chassis which are supplied on RTR chassis and scratch built, but now as they would be put into separate classes, I can remove this hindrance. 

I still not decided on the MR Slotman cars, they are effectively 1950’s racing cars carried over into the 60’s. Might be better off waiting until the series of cars has increased in the future for an earlier period proxy.