This includes limiter moved to 275km/h(in sixth gear) and M Driving experience driving training. Code is 07ME(like for M5&M6) and cost is around 2500Euro. It is available right now(MY2007).
http://wheels.carpoint.ninemsn.com.au/DesktopDefault.aspx?ArticleID=1795854&TabID=500483&Alias=wheelsau
si parla anche di X5 M V10 e (finalmente) dell'M5 manuale...