the spark plugs disentegrating in the 5.4L was one of the reasons we got rid of the truck before we had to change them.
I read up on the spark plug issues. There is a TSB on how to properly remove them, and if they break on removal, there are special tools that are used to remove them. The tool is not that expensive, its something like $61. Carbon builds up around the shield and they are 2 piece plugs. If the deposits aren't loosened up before plug removal, the bottom piece gets stuck in the head, and has to be extracted. If the porcelain part comes out with the plug and just the shell is left, easy extractions, but if the porcelain is left behind, then there is more work to be done.
So with that in mind, going to make sure if I do get one, that the plugs were changed out already, if not, have them do it as part of the deal.
Has nothing at all whatsoever to do with a Fusion going Chitty Chitty Bang Bang though.