I OWN A 2007 LEXUS 350 PURCHASED IN SEPT OF 2006. I HAVE EXPERIENCED PROBLEMS WITH THE TRANSMISSION, AT 3,000 MILES WHICH RESULTED IN LEXUS REPLACING THE TRANSMIION. MOST RECENTLY I WAS DRIVING ON AN INTERSTATE AND WHILE PASSING A CAR MY CAR ACCELERATED ON IT OWN TO 140MPG. I WAS BRAKING CONTINUOUSLY FOR SEVEN TO TEN MINUTES. I SHIFTED FROM DRIVE TO NEUTRAL. THIS DID NOT HELP. THE CAR ONLY SLOWED DOWN WITH THE PRESSURE ON THE BRAKES. I CONTACTED THE DEALER WHO PICKED UP THE CAR WHEN I RETURNED HOME AND I WAS TOLD THAT IT WAS A FLOOR MAT ISSUE MY FLOOR MAT WAS PUT IN BY THE DEALERSHIP. I WAS INJURED AND HAVE SINCE REQUIRED SURGERY. IN MY OPINION THERE IS A SERIOUS SAFETY ISSUE WITH THE VEHICLE. *TR