THE GAS PEDAL ON THE ADJUSTABLE PEDAL SYSTEM WILL ON OCCASION WEDGE UNDER EDGE OF FLOOR MAT. FLOOR MATS I HAVE ARE OEM PARTS THAT CAME WITH THE VEHICLE. PROBLEM HAS HAPPENED TWICE IN 2 MONTHS, ONCE AT 75MPH, AND THE OTHER AT 5 MPH. SECOND INCIDENT CAUSED ACCIDENT. DRIVER SIDE FLOOR MAT IS SECURED TO FLOOR CARPET WITH "RETAINER" MECHANISM (HOOK) THIS IS A VERY DANGEROUS DESIGN FLAW IN THE ADJUSTABLE PEDAL SYSTEM AND MUST BE ADDRESSED BY FORD MOTOR COMPANY.*AK