I'm not going to let my father borrow my car
Why do you not want to allow your father to borrow your car?
I'm afraid he'll hurt my car. What if I don't have a car anymore next time?
It sounds like he has a history of bad driving. You're not obligated to lend your stuff out to anyone anyways, especially in this case.
Wait, my father just went for a drive when I was gone, I think he is a bad driver.
That stinks. Yea it makes sense that you would not want your father to drive you car if this is true. Hopefully your father did not do any damage to your car.