Everyone has a problems with the floor mat moving forward under the gas pedal resulting in lower ETs. Yes, I have seen the clips that attach to the rear of the mats and pierce the carpet. After a few months this chews up the carpet and your floor mat. My old Nissan had a hole (gromet) in the floor mat and a hook built into the floor, under the seat. The mat did not move an inch. Maybe something that installs to the front seat bracket. A bigger cut out (relief) near the gas pedal would be nice.