Your inability to recognize this as a fact is your failing.
Here is another fact:
"The parents denied the child the use of the car"
All parties agreed that the child was denied the use of the car
Here is something thata *not* a fact:
"The parents denied her the use of the car as punishment for not wanting/getting an abortion"
Even though you claim this is a fact, it is not. It is the girls allegation, but it has not been proven.
So come up with an actual example or retract your false allegation. Your choice.
Being pro-choice, I support the right of the kid to decide whether to have the child or not. I think the parents have a right to take away the car, unless it is registered in her name. If it is in her name, until she is 18 they still have the right to not allow her to drive.