You are simply wrong. I have seen it happen AS THE CAT DID IT. We're not talking about them intentionally sharpening their claws--just walking, or worse, jumping quickly off as they were scared. And we aren't talking about some crappy hundred dollar paint job, but the original paint.
Don't believe it if you want, but I'm not making it up.
You mean the crappy original Ford paint that scratches if you rub hard?
Cats can't scratch real paint.
I don't think you're a liar, but the problem is that cats retract their claws when they walk.
Well, let's just say that you are talking about something I've never seen, and I've had many kitty paw prints on my cars through the years.