Originally Posted by wagon89
s54 even with the 100k warranty IM not sure I would want one after seeing a few implode

it happens but if they haven't blown up within 100K miles, it probably isn't going to.
the S54 in the M coupe has a lower redline by 300rpm. 7800 vs 8100rpm (might be off a little) and I guess that makes all the difference (according to BMW).