2011 BMW 535I US Power Train Problems

MY BMW HAS ABOUT 75K MILES ON IT. I WAS DRIVING IT ONE DAY AFTER WORK AND ALL OF A SUDDEN THE CAR STALLED ON THE HIGHWAY. CAR DID NOT SHUT DOWN OR ANYTHING BUT LOSS OF POWER, IT'S LIKE MY VEHICLE WENT INTO NEUTRAL GEAR, I STEPPED ON THE GAS AND THE CAR WILL NOT MOVE. THIS ALMOST RESULTED IN A FATAL CRASH. 'DRIVETRAN MALFUNCTION' CAME ON THE DASHBOARD. THIS IS VERY WEIRD FOR A CAR THAT ONLY HAS 75K MILES ON IT. I HAVEN'T HAD ANY ISSUES PRIOR TO THIS, CAR COMPLETELY STALLED WHILE I WAS DRIVING IT, I THANK GOD I WAS IN THE PROCESS OF EXITING OFF THE HIGHWAY, OTHER WISE I WOULD'VE HAD A VERY FATAL CRASH.

CAR SHOWS ERROR OF DRIVETRAIN MALFUNCTION AND THE CAR STARTS TO SHAKE.

UPON ACCELERATION FROM A STANDSTILL, THERE IS A 1 SECOND DELAY FROM WHEN THE ACCELERATOR IS PRESSED TO WHEN THE CAR ACTUALLY MOVES FORWARD. THE HESITATION IS PRESENT WHEN MOVING, BUT NOT NEARLY AS PRONOUNCED AS FROM A STOP. THE ACCELERATION DELAY IS BOTH DANGEROUS AND FRUSTRATING. LIVING IN A HIGH TRAFFIC URBAN AREA WITH LOTS OF HILLS(SAN FRANCISCO), THE DELAY HAS CAUSED ME AND MY FAMILY TO COME CLOSE TO MANY TRAFFIC ACCIDENTS. I AM UNABLE TO ACCELERATE IMMEDIATELY FOR LEFT TURNS AND AM NEARLY T-BONED WITH MY WIFE FEARING FOR HER LIFE. THE PROBLEM IS CONSISTENT AND HAPPENS EVERY TIME. IT IS AN OBVIOUS DESIGN FLAW THAT BMW FAILS TO ADDRESS. TOOK THE CAR TO MY LOCAL BMW DEALER TO ADDRESS THE ISSUE. THEY REPLACED THE TORQUE CONVERTER, BUT THE PROBLEMS REMAINS. TOOK IT IN AGAIN. THIS TIME THE SERVICE MANAGER INSISTED IT WAS TURBO LAG. TEST DROVE...