I hate Mustangs. The only one I would get is a GT500 / Salene. (GT500 was Elenor on Gone in Sixty Seconds)
Plus, my friend says they blow donkey balls. You're probably better off going with a Honda or Mitsubishi.
I was thinking of going with a Honda Civic Si Hatchback (either 91, 94, 95) a while ago, you can find them pretty damn cheap too. Or a supercharged Pontiac Grand Prix.
PS - 7k is about 2k out of my budget range. You're getting a better car for cheaper with an Eclipse my friend says.

Maybe tonight we'll fly so far away... We'll be lost before the dawn...