WHEN I ATTEMPTED TO STOP ON A DRY DAY GOING APPROXIMATELY 20 MPH MY BRAKES DID NOT OPERATE PROPERLY. THEY GRABBED AND THEN RELEASED WITH A FORWARD MOTION. I CONTINUED TO APPLY PRESSURE WITH BOTH FEET AND THE BRAKES STILL REACTED IN THE SAME FASHION. SUBSEQUENTLY I HIT THE CAR IN FRONT OF ME. I HAD THE CAR TOWED TO THE MERCURY DEALER AND THEY STATED THEY COULD FIND NOTHING WRONG. I AM CONCERNED AND ACTUALLY WORRIED ABOUT DRIVING MY CAR. *TT