I TOOK EVASIVE ACTION BY SWERVING TO AVOID COLLISION WITH OTHER VEHICLE THAT ABRUPTLY CHANGED LANE AND COLLIDED WITH MY VEHICLE. A RESULTS, MY VEHICLE STRUCK A CONCRETE BARRIER WALL OF THE ROADWAY, THEN BURST INTO FLAMES UPON IMPACT. MY VEHICLE WAS COMPLETELY BURNT OUT AT A TOTAL LOSS BEFORE FIRE RESCUE RESPONDED. THE AIRBAG NEVER DEPLOYED. PRIOR TO ACCIDENT I WAS HAVING NUMEROUS IGNITION RELATED PROBLEMS WITH MY CHEVY COBALT. *TR