I'm thinking of hiding in my car when I get home
Why would you hide in your car?
My parents would not want to see me.
It's awful to hear that you're worried about entering your home. If there is something dangerous happening between you and your parents you should talk to someone about it. Do you have any friends you can stay with?
WTF, no. Friends are not an option.
Well maybe you should call and talk to them on the phone. You can try to clear things up with your parents in a safe space. If not tell a teacher about what is going on they can help you find a safe place to stay like a group home.