05 TOYOTA PRIUS ( MY CAR) WAS RUNNING AT 25 MILES/HOUR IN LOCAL TRAFFIC. I FOUND THE CAR IN FRONT OF ME WAS SLOWED DOWN, SO I STEPPED DOWN MY PRIUS' BRAKE FIRMLY. MY PRIUS'S RESPONSE THE EVENT OF BRAKE BEING STEPPED DOWN WAS NOT AGILE ENOUGH , SO PRIUS HIT THE FRONT CAR'S BACK BUMPER. I WOULD LIKE TO REPORT THIS SLUGGISH OF PRIUS BRAKE TO FIGURE OUT WHETHER MY CAR'S SAFETY IS COMPROMISED OR NOT. *TR