Special edition M3...
The M5 and M6 have been out there testing for months. Neither will "hit the roads" in 2011 as a production vehicle. Correct?
In addition, I would think the enthusiasts would have dug up some type of information or spy shots on another vehicle like the X3M or Z4M. Both COULD hit roads in 2011 but both would at least have been seen on "the ring" or somewhere, especially the X3 since its a new vehicle and would need to be tested a bit more.
Dr. Kay Segler DID mention that they were going to crank out a few M3 special editions this year...
Edit: The picture does look like a cave... X3M? I say this because when i think of cave i think of Off roading and adventure.