MOST OF THE DAY MAY 8,2010 BEEN DOING SOME CITY BUT MOSTLY HIGHWAY DRIVING TOTALING APPROXIMATELY 100 MILES. STOPPED FOR AN HOUR AFTER THE FIRST 50 THEN DROVE ANOTHER 40 STOPPING AGAIN FOR ABOUT 15 MINUTES. DROVE THE LAST 10 HOME AND LEFT CAR IDLING TO GO INTO MY HOUSE FOR APPROXIMATELY 8 MINUTES. MY WIFE STARTED WALKING TO CAR AND WASN'T THERE YET WHEN CAR DROVE FORWARD INTO GARAGE DOOR. SHE JUMPED IN PASSENGER SIDE AND SHIFTER WAS STILL IN PARK. SCRAPED SOME OF THE PAINT OFF OF THE CAR AND SMASHED THE GARAGE DOOR. HAVE NO IDEA HOW OR WHY IT WOULD HAVE DONE THIS. *TR