Story here (apologies for cross posting).....
http://www.e90post.com/forums/showthread.php?t=634571
The US won't be getting it, and it's not due until the LCI version appears later this year. Cost probably outrageous.
Even so a diesel 'M' has got to be an interesting drive........
![Driving :driving:](./images/smilies/smilie_driving.gif)