Originally Posted by samchoi604
Clearly superior in what aspect? I wonder why BMW didn't put this superior engine in the 1M, 335is, Z4 35is.
Because people assume that having two turbos is better than having one.
I don't know that I would agree with Remonster that the N55 is superior to the N54, though. It might be, if for no other reason than the fact that engines generally improve over time and with proper attention, as is generally the case with BMW. But it's clearly no worse
, and it does include technologies that were not present in the N54.
I don't even think (edit: samchoi604) was wrong in saying that it was "not much of an upgrade". From a consumer perspective it's a total shrug. The only people who seem to have really noticed are enthusiasts and engineering awards committees like Ward's Auto.