1992 Ford Taurus brakes problems

While driving about 65 MPH on the highway applying the brake the pedal went all the way down to the floor. This caused the vehicle to stall and another vehicle hit the consumer from behind. The driver and passenger was transported by ambulance. There were no fatalities. Please provide details.

Dt: 1992 ford taurus. The u shaped housing that holds up the engine rusted. Consumer took vehicle to a mechanic, and they told him that it was an unsafe vehicle. The right outer tie rod, engine cradle rusted. Also, the front, emergency, service and rear brakes were no good, the key broken in the ignition. There were other problems with the vehicle. The consumer acquired vehicle from an auction house. He had a mechanic inspect it, and found it was bad. He took it back the auction house and he kept the title.