Check this out:
https://www.tirerack.com/tires/tires...2&autoModClar=
OEM M2 Michelin Pilot Sport Cup 2 tires. These have definitely not been delivered on any M2 to date. They are listed as backordered (make sense since they are not out yet) which means these are almost certainly for a M2 CS or GTS variant.
These are the same tires used on the M4 GTS.