what's described as a low speed "thunking" or "clunk" noise coming from the front end over bumps, etc. at speeds below 20 mph in the coupes. most of the complaints said it kicks in with very low miles and sounds like an old mini van front end. many have tried fixes to no avail. ford supposedly is recognizing an issue with bad front struts on all 07 stangs but has yet to issue a tsb. there is a very lengthy thread on another mustang forum (not sure if forum rules here allow another forum to be mentioned, but i'm sure you either already know which forum or can google it to find out.)