its not worth it, with almost 133,000 miles your about $2000 more then you should be paying, atleast.
You should check out some of the local car auctions and see, the ones that are listed in the small papers, you will be amazed at what you can get for under 4000.
brownsnoutuk the test is cached wether you are doing it or not. your ISP is a WISP so they might be doing something to make it cached. try testing from here http://www.speakeasy.net/speedtest/