general problems of the 2005 Ford Taurus

I was driving at a speed of maybe 45 miles an hour and I took my foot off the gas when approaching a red light. My car continued to accelerate really fast. I tapped the gas hard and it stopped. Since then it does it all the time. Now the car is hesitant and jerking. The transmission warning light recently came on and went away but the acceleration is getting worse each day.

Was driving my car when all the sudden it accelerated up to 40+mph with our me even touching pedal. . . I attempted to hit brakes but it kept going and slammed into curb on passenger side. . No body damage was done but I destroyed both rims, tires are flat and wheels are bent which I'm assuming is the alignment and suspension. . . I just bought/financed this car from a used lot on 10-18-2014 and now owe for a car that's pretty much totaled. . . However I did notify them that night (5 hrs after purchase) that the car was revving high and accelerating and hard to stop. I also took video of this. . . But I had to work all week and didn't have time to go in and complain about issue. . Then on Friday October 24th after I got off work and was almost home. . The car sped up and I couldn't stop it had to hit curb in order to stop car from driving me through an intersection and into a concrete wall. And now the car is parked in my complex, and can't be driven. . . . I'm just extremely thankfull that my wife and newborn were not with me this time. .