MY WIFE AND I WERE DRIVING DOWN A RESIDENTIAL STREET APPROACHING A STOP SIGN. THERE WERE TWO CARS STOPPED AT THE SIGN. SEVERAL HUNDRED FEET FROM THE STOP, I TOOK MY FOOT OFF THE ACCELERATOR. THE CAR DID NOT SLOW DOWN. I STEPPED ON THE BRAKE. THE CAR DID NOT SLOW DOWN. I STOOD ON THE BRAKE AS HARD AS I COULD. THE CAR DID NOT SLOW DOWN. I SAID TO MY UNDERSTANDABLY ALARMED WIFE, WE'RE NOT STOPPING. AND WE DIDN'T UNTIL WE SMASHED INTO THE BACK OF A TAHOE STOPPED AT THE STOP SIGN, DOING MAJOR DAMAGE TO THE PRIUS THAT RENDERED IT UNDRIVEABLE AND PERHAPS TOTALED. MY WIFE HAS A VERY SORE BACK THAT I AM HOPING STARTS TO FEEL BETTER TODAY OR WE WILL HAVE TO SCHEDULE A DOCTOR'S APPOINTMENT. *TR