I have a lawsuit for a repossessed car. What legal aspects or routes do I have in this case?

I am currently being sued by lawyers, for Consumer Portfolio Services whom I secured financing through for a used vehicle in 2006 in New Jersey. I was teaching then and made payments and even over payments on my vehicle when I was teaching in New Jersey. However, I and my children moved to Arizona in 2007 where I was promised a job and another teaching contract that was supposed to be for one year, but lasted only 3 months after I found evidence of someone using my credentials in the district before I was hired by the district. I have been unemployed full-time and part-time since 2009 and live way below the poverty line although I have sought employment throughout these years and previously had no problem getting employed. I also submitted a letter of zero net worth to the firm letting them know my hardships. I live on food stamps and the help of my mother who pays all our bills because of what I and my two children have been going through. The car was re-possessed in 2009 after I lost my teaching job and it has since been re-sold. How is it that the creditor can gain money from all ends when I can even get the car back as I was originally told by the guy they sent to re-possess it in 2009? What legal ramification (if any) can I take to get this case dismissed being that I am living below the poverty line, have neither job, nor income and my identity has been stolen?