Car Accelerates On Its Own problems of the 2010 Dodge Challenger

Upon starting to accelerate from a stoplight the car suddenly accelerated on its own & the brakes would not work. Their was a vehicle stopped at the next intersection (4 way stop). To avoid hitting them I went to the right of the stop sign. There was just enough room in between the stop sign & a telephone pole. I had shifted the car to neutral, & finally got it stopped in front of a house. I was very shaken up by this & called my husband. He said he would be there ASAP. A man came out of the house & asked me was I ok. I told him what happened & let him know my husband was on the way. When my husband got there, he got me calmed down & said he was going to try to drive it cautiously to the dealer. I followed him in his car (Toyota) & we made it to the dealer without any other incident. We called Chrysler corporation & they opened up a case file (29522357) trying to get information from Chrysler, my husband left multiple messages for them to get the status on this. He finally got them & they said they couldn't duplicate the problem & they were closing the case. I was charged 130. 00 from the dealer for diagnostic test. Now I have a car that I am afraid to drive & can't conscientiously sell it to someone else.