Bankruptcy Law Questions? Ask a Bankruptcy Lawyer Now.
They want you to re-affirm so that the car loan will pass through the Bankruptcy without being discharged. This means you will remain liable for paying it. If something happens, and you can no longer pay, they will be able to garnish your wages and bank accounts.
Re-affirmation is rarely a good idea.
I think this is what you wanted to know. If not, please let me know.