I'VE OWNED MY 2011 SUBARU LEGACY SINCE MAY OF 2011 WITH NO INCIDENTS RELATED TO SPEED CONTROL. LATE AUGUST 2014, I WAS PULLING INTO MY DRIVEWAY OF THE HOME WE'VE LIVED IN FOR 13 YEARS, AND MIDWAY THROUGH THE TURN I HEARD A REVVING NOISE. MY FOOT WAS OFF BOTH THE ACCELERATOR AND BRAKE AND THE CAR UNEXPECTED LURCHED FORWARD AT A HIGH SPEED, CRASHING INTO OUR CHAIN LINK FENCE AND TREE BEFORE BOUNCING BACK INTO THE DRIVEWAY. AS THE CAR STARTED TO ACCELERATE, I DEPRESSED THE BRAKE TO THE FLOOR, BUT NOTHING HAPPENED. I WAS ALONE IN THE CAR AND THE AIRBAG(S) DID NOT DEPLOY. I WAS PROBABLY GOING 25MPH WHEN I HIT THE TREE. THE METAL FENCE POST WAS FLATTENED AND THE TREE HAD A SIGNIFICANT CHUNK OF BARK REMOVED. THERE WERE NO SKID MARKS OR OTHER ON OUR DRIVEWAY OF CONCRETE. I HAD AN OIL CHANGE AT THE DEALER THE TUESDAY BEFORE THE INCIDENT (8 DAYS PRIOR). I'M NOT RULING OUT THAT SOMETHING COULD HAVE BEEN MISTAKENLY TWEAKED OR TAMPERED WITH DURING THIS VISIT. TO TEST THE SPEED CONTROL ISSUE, I HAVE CONTACTED THE DEALER TO SEE IF ANY TROUBLESHOOTING/ DIAGNOSTICS TEST CAN BE RAN. APPARENTLY IT'S HIGHLY UNLIKELY THE SCENARIO THAT CAUSED IT (IF NOT DRIVER ERROR, WHICH I'M AWARE OF AS A POSSIBILITY) CAN BE RECREATED AND/OR SOLVED. I BELIEVE I'VE RULED OUT DRIVER ERROR BECAUSE IF I HAD MISTAKENLY PRESSED THE ACCELERATOR AND NOT THE BRAKE, I WOULD HAVE SWITCHED OVER TO THE BRAKE IN TIME TO STOP THE IMPACT FROM BEING SO DRASTIC AT SUCH A HIGH SPEED. *TR