If you’re looking for a used car, the internet is perhaps your greatest resource.  Not only can you buy mustangs for sale on the internet, you can also use the internet to research your many different options.  It goes without saying the the internet is filled with deals that you probably won’t be lucky enough to find at a used car shop, and so you most certainly can find a nice car within your price range.  Some good sites to look at would be craigslist and ebay, but if you just put in a google search, you will come up with more available options than you might realize even existed.