Another possible way to figure this:
How many fresh spare S65s did BMW produce?
How many fresh spare S65s does BMW still have in stock?
Then we just need to estimate how many were replaced for reasons other than premature bearing failure, such as broken oil pan, valve springs, over-rev etc.
Not sure how to figure out how many spare S65s were originally produced though.
And if you can believe what you read on the internet, it sounds like BMW ran out of the original spare S65 engines some time ago.
Anyway, it would be nice to know how many spare engines BMW has gone through.
Cheers,
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2011 E92 M3 - 6MT, ZCP, ZF LSD, ESS G1, Some other goodies...
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