Guess I'll be keeping my 240D for life if the signifying PoS in the article pic has his way. This being said, no reason why the system can't be anonymous, since collision avoidance only requires knowing vehicles' locations, sizes, speed, and direction. It doesn't matter that VIN #XXXXXXXXXXXXXXXXX is there, just that a vehicle is there and taking up a certain amount of space.

It's also not terribly useful for tracking, since this is short-distance communication. Mandating something like On*Star that communicates via the mobile network continuously would be a lot more effective for tracking.