Dear Dad,
This is my apology for driving your car out with out permission. I understand that not asking was wrong of me and I give you my word I will do better. I'm truly grateful for all you do for me and I'm sorry to mistreat you and your trust the way I did. I genuinely hope you can forgive me for my poor choices and bad actions. I am not even aware what I would do without you. I love you very much and I'm SO sorry.
Love
(enter your name),
