^. I've driven one. The Bimmer store normally has one. They are all special order and limited. I believe BMW said they were only going to make a certain number but I still see them for sale new from time to time.

The traction and all that can be turned off with a simple chip..big whoop. They are slightly slower because of the gear ratio's but not much. If you can get it out of the hole you'll still do low 12's