Brief update added to the
first post of this thread:
'M2 COMPETITION' UPDATE #4 (DECEMBER 2017)- Autumn 2017: 'M2 Competition' PR campaign cars have been built (see here);
- Winter 2017-2018: release and presentation of the M2 Competition (presentation location currently still unknown, but guessed to be the Geneva International Motor Show in March 2018 as likely venue - see here);
- mid 2018: M2 Competition (3.0 S55 engine - 302kW) replaces the base M2 (3.0 N55 engine - 272 kW);
- Sep 1, 2018: further step of EU6c emissions regulations implementation takes force in the European Union; non-compliance by a vehicle manufacturer = EU national authorities shall refuse to grant EC type approval or national type approval and shall consider certificates of conformity to be no longer valid and prohibit registration, sale or entry into service of non-compliant vehicles (see here, here and here);
- late 2019: though still unclear, a more powerful M2 sibling (3.0 S55 engine) is rumored to be scheduled for release; likely named "M2 CS" instead of "M2 CSL" (see here, here and here); resources assigned to work on this M2 variant project are rumored to be scheduled until August 2018 (here); the '999 cars' production figure has already been rumored a couple of times (see here, here, here and here).

(picture source:
here)