I would put a cent at present to some concept.
Even employees of the M-GmbH tell everything-except the truth!
Thus speaks one half of the V6, the other half of the R6 ...
It is interesting but just a rumor that has surfaced:
Latest BMW insider info, 3 sources.
Here we go:
Dubbed "S54b42 '(e46 m3 had notice S54b32)
N / A 3.6l inline 6
~ 466hp @ 6700rpm-7700rpm
~ 434hp @ 8300rpm redline
~ 390tq from 4300rpm all the way up to 7500rpm
~ 350tq @ 8300rpm redline
Carbon hood and trunk
6 piston front 4 piston rear, drilled or slotted rotors
14:5:1 steering (same as e46 m3 csl and comp. Package)
Race tuned, adjustable suspension
19 inch BBS wheels, e46 csl wheels by inspried but "new / updated" look
Michelin PSS optional Pilot Cup tires Sprot
Whether it really is true, I can not say ....
...but as of the release-date I can tell you something:
It will not take more like 12 months!