I have a 2008 Ford Focus SE and it is making the same noise. Its a very loud creaking noise that sounds like it's coming from the inside, particularly from the rear as if it has something to do with the right back wheel. I was told just yesterday that it can be heard from the outside as well, so of course this raises my concern even more. I'm hoping that it's just the rear shock mount as stated above. Are there any other possible reasons behind this obnoxious creaking sound ?!