There is a good write up in Classic & Sportscar about a 230 SL rally car. It has been extensively modified and its a pretty good read. The same car has been the subject of a more intense article in the UK Mercedes Benz Club Gazette. This details the modifications a bit more clearly !
I will ask them for permission to scan and reproduce if anyone is interested !
Regards,
Ben in Ireland.
'64 230SL 4sp.