Originally Posted by Hyper psi-atic
I think this is the right answer. Prolly just their new logo. I picked up my 09 M-Sport 335 this July and it had the"Efficient Dynamics" logo stickers on each side window. I asked what that was on there for and my CA just said it's BMW's new promotion of trying to get their fleet within average CAFE standards. They may be working on some electric cars or watever, but I highly doubt watver that "tailight" thing is would end up on any concept car in the near future.
This is the efficient dynamics logo.