general problems of the 2001 Mercury Sable

My wife purchased a 2001 Mercury Sable LS on 1/31/01,I drove the auto for 2 days, when I put the auto in gear the gas pedal reacted as though the pedal was pushed to the floor board. I called port motors and told them about the situation and told them I refused to drive the auto. The next day they came and towed the auto away. When I went to the dealer they gave me another auto,for which I still have the old VIN #. After driving the new auto they gave I began having the same problems. Over the past 8 years the accelerator problem has occurred about 9 or 10 times. When I put the car in gear I always make sure my foot is always on the brake as I fear the auto will accelerate as though the pedal goes to the floor,my wife refuses to drive this auto and I will not let anyone drive as I don't know when this racing will occur. I have reported this to Ford motor but got know positive response, I also reported this to national safety board and they gave me a complaint #.

Consumer can smell gasoline inside the vehicle while driving causing the occupants to feel ill, dealer tried to find problem but was not successful. Nlm.