So if his complaint is that you aren't working…..
How about you say to him you want to go back to work so you can start contributing to the family. Need to get the car fixed. Leave it at that. Start going through the motions of looking for jobs online etc.
You may not really have it in you to get a job right now living with crazy town, and I do understand your situation. Maybe you have enough in you to appear that you are trying to to AH and maybe, just maybe he will get that car fixed.
Manipulative but who gives a rat you are a prisoner.