One word, independence. I moved out when I was 17 because I had some issues with the parents as well. They weren't happy with me for a few months but now they keep asking me to visit etc. etc. They haven't changed about their ways though so it shows, people don't change. (i'm 26 now)
I think you have become accustomed or used to the "protection" they give and feel scared to do your own thing. Who's name is the car under? You're 22 for so I think it darn well should be in your name. If your dad want's to be hard*ss, give him hard*ss. They are normally the first to cry. If you don't take a stand now, when will you? Or will you forever let them control you and your life the way they are doing now?
There are 16 year old's that have kids even....
oh sorry i do realise that, just that i was in my mid 20's when i had my first. then in my 30's when i had my other 2. so call me a prude then LOL.