Although there's no Z4M planned on the E89 platform it is strongly speculated that the M3 will move to a forced induction engine, most likely turbo charged and most likely a 6cyl. If that is the case then it may be possible for an M variant of the Z4 with the new M3 6cyl engine.
The other option is that they'll debut a new 6cyl M engine in the Z4M and then introduce it in the M3 with the next model.
But right now that's all speculation and wishful thinking, there is no M version planned or even being talked about with any seriousness.
|