I STOPPED AT A GROCERY STORE ON THE WAY HOME FROM WORK AT APPROX. 6:30 PM ON 11/17/11. I PARKED THE CAR, TURNED OFF THE IGNITION AND LOCKED IT. WHEN I EXITED THE STORE APPROXIMATELY 13-15 MINUTES LATER, I FOUND THE CAR A SMOLDERING SHELL SURROUNDED BY FIREFIGHTERS. IT APPEARED TO HAVE SPONTANEOUSLY GONE UP IN FLAMES. FIREFIGHTERS COULD NOT DETERMINE A CAUSE. THERE WAS NO INDICATION OF ANY PROBLEMS WITH THE CAR PRIOR TO THIS INCIDENT (CAR PERFORMED "NORMALLY" AND THERE WERE NO ALARM OR FLASH INDICATORS ON THE CONSOLE SUGGESTING A PROBLEM.) *JB