I WAS "T-BONED" ON MY DRIVERS' SIDE ON JULY 3, 2009 IN MY 2007 PRIUS. THE CAR HAD EXTENSIVE DAMAGE AND THE ELECTRIC MOTOR WAS DISMANTLED AND REPLACED (SAME ONE) AS PART OF THE REPAIR. AT THE TIME OF THE ACCIDENT IT WAS FINE AND I AVERAGED ABOUT 48-52 MPG. IT WAS IN THE TOYOTA REPAIR SHOP FROM JULY 7TH THROUGH LATE AUGUST AND WASN'T RETURNED UNTIL MID-SEPTEMBER. I HAVE NOT BEEN DRIVING IT SINCE I LAST PICKED IT UP BECAUSE I DID NOT FEEL SAFE IT . THE PROBLEM WAS NEVER FOUND AND I WAS TOLD "...IF WE CAN'T FIND THE PROBLEM, WE CAN'T FIX IT...IF IT HAPPENS AGAIN, BRING IT BACK, IT'S UNDER WARRANTY." YESTERDAY (NOVEMBER 4, 2009) I HAD TO DRIVE IT TO WORK (DOWNTOWN) BECAUSE MY HUSBAND HAD OUR VAN AND I FOUND THAT IT IS STILL ACCELERATING IN ODD WAYS LIKE IT DID WHEN WE GOT IT BACK IN SEPTEMBER. WHILE IN STOP AND GO TRAFFIC AT A LOW SPEED WHEN I WENT TO ACCELERATE TO A HIGHER SPEED (APPX. 50 MPH) IT WASN'T ACCELERATING PROPERLY, THEN SUDDENLY "KICKED INTO" ACCELERATION THEN I HAD TO SLOW IT DOWN WITH THE BRAKES. THE TOYOTA HYBRID ENGINE DISMANTLING MANUAL (I FOUND ONLINE WHEN I WAS TOLD TOYOTA COULD NOT FIND THE PROBLEM) ON PAGE 1 #1-5 SHOWS HOW THE VEHICLE SHOULD BE OPERATING. AS I'VE DESCRIBED SINCE AUGUST, THE DAY I FIRST PICKED IT UP, THIS IS NOT HOW IT'S FUNCTIONING. IN LIGHT OF THE NEWS YESTERDAY, THE NATIONAL HIGHWAY TRAFFIC SAFETY ADMINISTRATION FOUND NO DEFECT EXISTS IN VEHICLES WITH PROPERLY INSTALLED FLOOR MATS. AND IN FACT, THE NHTSA SAID, TOYOTA VEHICLES HA