This is essentially the first official hard confirmation of the G8x front grilles and should put a lot of the speculation to rest.
These are likely the colors Isle of Man Green and Sao Paolo Yellow (from the
known color list).
Enhanced version:
Original:
Updated with some enhanced images showing more details and a couple of easter eggs left by BMW M:
Posted by @Artemis:
The G80 M3 / G82 M4 picture released by BMW includes the Easter Eggs "Nice Try" and "Nope":
OK, challenge accepted.
Original picture:
Let's have a look:
"Nice Try" (M logo location - trunk):
"Nope" (near headlights - driver's side):
Message for Mr. Markus Flasch: we salute you.
This enhanced picture also shows the muffler: