My bad, didn't realize it was the same person. Still stolen regardless. Overall a really shitty situation for OP to be in.

See my other comment for more info. But (at least in Missouri my) you can absolutely file that as stolen. My future sister in law works at a carmax. Someone test drove a car and was supposed to return in about 15 minutes. An hour later with no contact they reported it stolen and the kid was charged with vehicle theft.

No.

This actually happened at my future sister in laws work (Carmax). They had an employee that wanted to test drive one of the new sports cars that was around. They gave him like 15 minutes or so, after an hour or so of it missing (and not being able to contact the person) I believe is when they called the cops to report it stolen.

The rest of the story gets into a giant jumbled mess, but regardless, how he got it and what he did with it are entirely different things.

Otherwise I'm going to borrow your car, and then just never give it back. But it's not stealing because I got it legally in the first place and had permission to.

Edit: the other person mentioning being a minor giving it to parents to loan out makes a fair point unfortunately for OP. The law likely won't favor towards OP.