The stock motor on that is a 540 Mabuchi type, any brushed ESC will work. The Electrix one is probably a good suggestion if you can find it. I would look at a cheap ESC at Hobbypartz or Hobby King.
Scratch that, found nothing but brushless there. try this, $11. I would get 2. It looks just like the cheap ESC that comes with that car. I have 2 cars like yours.