1. Whether it is useful to sue the seller for stealing the mortgage car depends on the situation:

(1) If the car is stolen due to the seller's distance, you can sue the seller for a refund, bear the liability for breach of contract and compensate for the losses;

(2) If the vehicle is stolen for reasons other than the seller's, the seller does not constitute a breach of contract and will not be liable for breach of contract.

2. Legal basis: Article 392 of the Civil Code of People's Republic of China (PRC).

If the secured creditor's right is secured by both things and other things, if the debtor fails to perform the due debt or the parties agree to realize the security right, the creditor shall realize the creditor's right in accordance with the agreement; If there is no agreement or the agreement is unclear, and the debtor provides the security of the property himself, the creditor shall give priority to the realization of the creditor's right with respect to the security of the property; Where a third party provides a property guarantee, the creditor may realize the creditor's right with respect to the property guarantee, or may require the guarantor to assume the guarantee responsibility. The third party providing the guarantee shall have the right to recover from the debtor after assuming the guarantee responsibility.

2. What are the requirements for vehicle mortgage loan?

1, a citizen of China who has reached the age of 18, has full capacity for civil conduct and has a fixed residence in China;

2 have a stable professional and economic income, and can guarantee the repayment of the principal and interest of the loan on a regular basis;

3. Can provide automobile mortgage, and have the guarantee measures approved by the loan bank;

4. The lender has the ownership of the local mortgaged vehicle.