Before I react to anything someone says or does, I try to ask myself 'Has this person done something WRONG to me?'. Not something I just don't like. Or think they shouldn't have done. etc, etc. Are they WRONG?
I don't think the girl did or said anything wrong. She feels how she feels. She explained exactly why she feels the way she feels. She did it respectfully.
I'd just tell her 'Ok, well I'm sorry you don't like the car. But...that's your car. You don't have to drive it if you don't like it or don't want to. I respect it.I'ma go ahead and put the keys over here in the drawer. If you ever decide you want to go anywhere, you know where to find them.'
She can drive that bitch or not drive it. That's her decision. But it's either that, the bus, or them feet.