Quote:
Originally Posted by snaimpally
The new M3/M4 use the S55 (which is derived from the N55 but sufficiently changed to warrant its own designation) whereas the M2 uses the N55. The M2's N55 seems to be an enhanced version of the N55 engine used in the 135i, 335i etc.
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Ok thanks...and that blows. The S55 seems much more stout than the N55