CIRCUIT BOARD BEHIND INSTRUMENT PANEL CAUGHT FIRE AS I DROVE,SENDING SMOKE THROUGH DASH BOTH TO LEFT AND RIGHT OF SPEEDOMETER-GAUGE AREA. NO FLAME EVER VISIBLE. SMOKE STOPPED OF ITS OWN ACCORD. GAS GAUGE DROPPED TO INDICATE "EMPTY" - THEN RETURNED TO PROPER INDICATION. I CONTINUED TO DRIVE HOME, THEN TO GARAGE, NO APPARENT EFFECT ON ANY OPERATING SYSTEMS. CIRCUIT BOARD AND GAUGE KIT WERE REPLACED AT NO CHARGE TO ME. (CAR STILL IN WARRANTY) SERVICE MANAGER REPORTED HOLE BURNED IN CIRCUIT BOARD 2 OR 3 INCHES IN DIAMETER.