1. If I am the owner, I have the right to decide whether to sign the vehicle. If you don't want to give up the vehicle, you can refuse the visa. However, if an agreement has been reached with the relevant parties to abandon the vehicle, it may be necessary to abide by the agreement and sign it for confirmation.

2. If I am not the owner of the vehicle, but I am asked to sign to confirm that I voluntarily give up the vehicle, I can read the contents of the confirmation letter carefully and consider whether to sign it. If I think the content of the confirmation letter is inconsistent with the facts or there are other problems, I can refuse to sign it and report the situation to the relevant departments.