Automatic Transmission problems of the 2005 Ford Crown Victoria

I bought Ford victoria crown model 2005 from an individual on Dec. 2009. It was police car. After I bought the car within a months time I hit another vehicle. I lost control and the brake didn't work. It didn't stop by hitting once, it was amazing hitting back again and again. My car or even the other car didn't have any body damage and after 1 hour I started driving and on my way home the same thing happened. I got out of the road but no accident. I took the car to the garage and I paid $800. 00 for the maintenance. I used the car for a taxi cab. Again I have another problem with this car. I had to take a customer to the airport and before I got there, smoke was coming out and I stopped the car in the airport garage. This time it became completely out of service and I had the vehicle towed to the garage. The result as the mechanic tested said the transmission is totally out of use and need another one. Again two months back while driving I lost control of the brake and stop out of the road. Recently on Sunday Dec. 19, 2010 major accident happened. While driving I couldn't control the brake and the vehicle accelerated on its own. So, I hit the fence on the road and the vehicle was damaged. The vehicle was towed to the garage and when the mechanic tested he couldn't find anything, even he did a road test. I was advised this vehicle is dangerous if I start driving . I can submit all my expenses which I paid for the maintenance if possible. Thanks to a friend who gave me information to check online if this vehicle model is recall . Updated 01/03/11.