ON 31 DECEMBER 2009 MY 08 PRIUS WAS SLOWED DOWN PRIOR TO TURNING INTO A DRIVEWAY, WHEN IT SUDDENLY ACCELERATED. IT WENT OUT OF CONTROL AND CRASHED INTO TREES AND A POWERPOLE. THE FLOOR MAT, THAT ACCORDING TO TOYOTA IS SUPPOSED TO CAUSE THIS, WAS PROPERLY ATTACHED TO THE PEGS IN THE FLOOR, AND IN PROPER PLACE EVEN AFTER THE CRASH RECENTLY, ON 6 APRIL, 2010, I AGAIN EXPERIENCED A SUDDEN UNEXPLAINED ACCELERATION WHEN GOING ABOUT 5/10 MILES PER HOUR. IT LASTED ABOUT FOUR SECONDS AND DID NOT RESULT IN AN ACCIDENT. *TR