If anyone's still interested, I have heard of two more failures.
I have been told that the Scura clutch is based on the RAM design, MG purchasing some parts of the clutch assy from RAM but not all: RAM did not supply the flywheels . This fits with what we know so far.
If anyone has detailed photographs of any similar failures not yet posted here, I would be grateful if you would include them in a reply in this thread. Thank you.
KB