[Xtabi]

My speculative vote is that this may very well be slated for the F8X due to the impending Audi B9. Considering the A4/A5 S4/S5 and RS cars are competitors and gaining market share. My guess is that the external style of these Audi cars are going to add enough change to drive BMW to release these tail lights very soon.

Lights and their corresponding technology and style, like it or not, create desire. And desire equates to sales and relevance. And no cars are more important than the 3 (4) series to BMW.