I DROVE MY KIA SORRENTO FROM ROCHESTER NY TO OSWEGO NY WITHOUT INCIDENT. I HAD NO CAR TROUBLE NOR HAVE I IN THE DISTANT PAST. I PARKED IN A LOT AND TURNED OFF THE CAR. SMOKE BEGAN TO EMIT FROM UNDER BOTH SIDES OF THE HOOD. AS I GATHERED MY PURSE AND COAT, THE SMOKE BECOME MORE VOLUMNIOS AND DARK. AS LEFT THE VEHICLE, I INSPECTED MY DASHBOARD FOR SIGNS OF OVERHEATING OR A LIT INDICATOR LIGHT. NOTHING WAS LIGHT OR OVERHEATED PER THE DASH. AS I EXITED THE CAR, THE CAR WAS ON FIRE. A MAN IN A CAR PARKED NEAR ME, APPROACHED THE CAR WITH HIS FIRE EXTINGUISHER, AIMED UNDER THE CLOSED HOOD AND SPRAYED. IT DID NO GOOD. AS HE DID THIS, I CALLED 911 TO REQUEST A FIRE CREW. BY THE TIME THEY ARRIVED, THE CAR WAS ENGULFED IN FLAMES. THE CAR IS A TOTAL LOSS, JUST METAL CHARRED REMAINS.