bought a car a few months ago from the local Ch...

bought a car a few months ago from the local Chrysler Dealer and the car was a used sports car , maybe 1,000 miles later the car through a ride out of no where . they said it was because I was driving the car fast and they won't honor the warranty because of that. I paid extra for the warranty that's the only reason I bought a used sports car off the lot but now I'm stuck with a car payment and insurance on a car that isn't running. they aren't even trying to work with me I'm going to keep calling so they can have the car back or fix it then I can sale it back to the dealer