If we're talking about faith as trust or confidence (rather than the much more cognitive "believing stuff without evidence"), this trust or confidence is broken down to inclinations of the will. You can't have faith without your will being proportionately in line with the thing or person you have faith in.
So, since I told you I think my car will either work or not work,
a. what is it that I have trust or confidence in, and
b. how does that trust or confidence manifest?
If I say I have faith in your ability to do math but come the calculus exam I cheat off of someone else, then I don't have faith in you.
To be precise, you don´t have faith in my math abilities, or to even be more precise, you don´t have faith that my math abilities match this particular challenge.
But more importantly: You haven´t been telling me what I
don´t have faith in. You have been telling me
that I have faith in something - without even knowing my behaviour.
It's the instances of will relating to the thing in which you have faith that determine the quality of the faith in question.
Ok. Please make a chart concerning the car issue, with three columns:
1. the different degrees of the "inclinations of the will",
2. the correspondent behaviours,
3. the resulting insights of the quality of faith.
I suspect that, in order to make your point, you will even ascribe some sort of faith in the car to the guy who has lost all hope that it will work, but occasionally tries to start it, just in case.
On another note, and since this thread is about atheism, if you don´t even believe there is such an entity to have faith (trust, confidence) in, your definition simply doesn´t apply.
An instance of "faith" - if not used in a very loose way for purposes of equating all qualities of inclinations - would be to plan to drive to work tomorrow even though I don´t have a car.
On yet another note, it seems to me that "trust, confidence" in a fellow human being and "faith, confidence" in an inanimate object are two completely different concepts.
But since you are free to define words any way you like, language gives you the power to make all differences go away.