Vehicle Shudder problems of the 2008 BMW 750

Symptom with engine stalled after 5 minutes of driving on busy intersection. . The transmission auto to p after full stop, could not change gear, breaks hardened. Steering tight! battery worked but no message on idrive / dashboard. About 6 times to re-start but couldn't! waited 15 minutes looked up issue on the web by cell phone. Car started, cold start; symptom was check-engine light popped on; reduced driving power; car vibration; idrive message "?transmission failure; p, n, r, 3, 5, 6 ; drive moderately to nearest BMW dealer ! put on hazard light, drove home 1 mile away car vibration sound noticeable. Very scary and dangerous to have vehicle failure abruptly with no resolution or warning?. My 2008 BMW 750li with 57,000 miles started next day with check engine light remained for a few hours then off. This vehicle is garaged well maintained not to mention California good weather conditions. This now has happened 3 times in two months. This should be recalled. I am afraid to take this BMW vehicle too far of distance or on highways due to transmission failure incidents. Major defect. ! vehicle becomes resistant to drive when this happens. I almost got in a major collision due to this mechanical defect problem. Should I be killed or injured by an unforeseen accident do to this would be tragic!.

Failure-1: 5:50am wed. 4/4, 35mph on regular road, ~12 miles after cold start; symptom: engine stalled in a sudden; break worked well; transmission auto to p after full stop, could not change gear; battery worked well, head lights and hazard light worked fine; no message on idrive / dashboard; tried 4-5 times to re-start but couldn't; action: put on hazard light; made phone calls; succeeded to re-start after about 3 min. ; failure-2: 6:50pm wed. 4/4, 35mph on regular road, ~20 miles after cold start; symptom: check-engine light popped on; reduced driving power; car vibration; idrive message "?transmission failure; p, n, r, 3, 5, 6 available; drive moderately to nearest BMW dealer"; put on hazard light, 15mph drove 2 miles to home; high vibration at stop sign; can re-start / change gear at home garage; action: re-started @ 6:30am thurs. 4/5; check-engine light still on; same idrive message; drove to dealer, picked up the car in the evening; dealer "no problem identified", check-engine light reset; failure-3: 4:05pm mon. 4/9, 5mph turning corner at car park, ~30s after cold start; symptom: engine stalled in a sudden; loss break (brake pedal harden); hit curb and stopped; transmission auto to p; could not change gear; battery worked well; hazard light worked fine; no message on idrive / dash board; tried 4-5 times to re-start but couldn't; action: put on hazard light; made phone calls; succeeded to re-start after ~3min; drove to dealer @4:40pm; dealer called @2:00pm wed. 4/11, "no problem or error codes identified", permission for long test drive; dealer e-mail @3:18pm 4/16, "no problem identified after 1-week test-drive"; urged dealer to contact BMW hq for a thorough investigation with definitive report before returning this car back to public road; it has become a severe public road safety concern now!.