VEHICLE IN MOTION WITH DEFROST ON, SMOKE CAME FROM DEFROST VENT ON DASHBOARD, FILLING CAR INSTANTLY WITH SMOKE. PULLED OFF HIGHWAY, OPENED WINDOWS, SMOKE CLEARS THEN MOVED CAR APPROXIMATELY 200FT. OFF MAIN ROUTE TO SIDE STREET. SMOKE AND FLAMES IMMEDIATELY CAME OUT OF THE DEFROST VENT. USED 3 ABC FIRE EXTINGUISHERS, FAILING TO CONTAIN THE FIRE BEFORE THE FIRE DEPARTMENT ARRIVED WITH 2 PUMPERS, AND HAD TO USE AFFF FOAM TO MANAGE THE FIRE DUE TO HIGH AMOUNTS OF MAGNESIUM IN THE CAR. THE NEWLY PURCHASED CAR WAS IN VERY GOOD CONDITION, THE CAR AND CONTENTS ARE A TOTAL LOSS. RESEARCHED ON LINE, FOUND MULTIPLE REPORTS OF THE SAME EXACT ISSUE IN THIS MODEL, THIS WAS NOT UNIQUE. ALSO WAS NOT ABLE TO FIND ANY REPORTS OF RECALL FOR THIS DEFECT. ALSO, WILL BE CONTACTING BMW OF NORTH AMERICA TODAY. *TR UPDATED 12/06/12*LJ