[Graham]

A few things to mull over there.

What about slimline motors which have been mentioned a few times in this thread?

I don’t think slimline motors has been raised in regard to this Touring car Proxy ??

And I can’t really see why anyone would use them for these later-ish era cars.
 I think maybe for 50’s cars they are more appropriate, but to keep things simple and for closer racing I think a narrow band of similar motors is sufficient for this next proxy.