TL* THE CONTACT OWNS A 2007 MAZDA CX-7. THE CONTACT STATED THAT WHILE DRIVING AT APPROXIMATELY 60 MPH, THERE WAS SMOKE COMING FROM THE REAR OF THE VEHICLE. THE VEHICLE STALLED WITHOUT WARNING. THE VEHICLE WAS RESTARTED, BUT THE FAILURE RECURRED SEVERAL TIMES. THE VEHICLE WAS NOT DIAGNOSED OR REPAIRED. THE MANUFACTURER WAS NOT NOTIFIED OF THE FAILURE. THE FAILURE MILEAGE WAS UNKNOWN.