Ignition problems of the 2003 BMW 745

I purchased the car in kansas in July 2003. The first week after I purchased the car I contacted the dealership about a problem with the car stalling out. The dealership told me it was a design feature. I moved out of the state and contacted a dealership in the corpus christi, TX area about the continuing problem. Over the past year I have had several occassions when the stalling was such that the car would fail and place me and/or my family in near accidents. I made visits to the texas dealership in November 2003, twice in January 2004 and may 2004 for repairs and complaints about the same problem and potential accidents due to the problem. The problem was dismissed and repair was never made. In the last month the "safety" feature that was supposedly causing my problem was "turned off" to cure the problem. I now feel more than ever that the car is unsafe. I have taken this all the way up to the manufacturer and still no repair has been made and no other option has been given. The state of kansas attorney general's office suggested I contact you for help.