I have to agree with Ash on this one. You can ask too many questions. It's okay for the used car lot, but not with buying special interst cars.
If I had a buyer ask such questions while standing ther looking at the car, it would be a signal that the buyer doesn't have even a baseline working knowledge base on the basic operation of a car, possibly only able to check the oil.
Such a buyer isn't suited for buying special interest cars. Also, a list of questions isn't much help because lots of the answers would be "I don't know."
The best way to buy is to have the knowledge base of knowing what to look for.
If I may make a suggestion, maybe we ought to start a thread of what things to look for, and everyone can add comments about what red flags to look for. It would be a lot more productive than whining.