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grimlock · 12-16-2013, 06:20 AM

I wonder why there hasn't been more info on the 'S55' engine.
How does it differ from the N54 introduced 7.5 years ago?
Just the addition of valvetronic II, that differentriated the F10 M5 from the 550i for about a year?

12-16-2013, 06:20 AM	#49
grimlock Colonel 716 Rep 2,003 Posts Drives: F10 N52B30@255PS Join Date: Sep 2010 Location: Hong Kong iTrader: (0)	I wonder why there hasn't been more info on the 'S55' engine. How does it differ from the N54 introduced 7.5 years ago? Just the addition of valvetronic II, that differentriated the F10 M5 from the 550i for about a year?
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