TL*THE CONTACT OWNS A 2006 MASERATI QUATTROPORTE. THE CONTACT STATED THAT THE STEERING WHEEL BECAME VERY STIFF WHILE ATTEMPTING TO MAKE AN EXTREME LEFT OR RIGHT TURN. WHILE DRIVING 25-30 MPH, THE ENGINE STALLED AND THE VEHICLE CAME TO A COMPLETE STOP WHEN THE BRAKE PEDAL WAS DEPRESSED. WHEN APPROACHING A STOP SIGN OR TRAFFIC SIGNAL, THE VEHICLE WOULD SLOW DOWN AND SHUT OFF COMPLETELY. THE VEHICLE MUST THEN BE RECHARGED AND RESTARTED. THE FAILURE OCCURRED THREE TIMES. THE VIN WAS UNKNOWN. THE FAILURE MILEAGE WAS 12,000 AND CURRENT MILEAGE WAS 17,700.