Is it permissible to use a bank as an intermediary to purchase a car in exchange for a deposit that its owner fully recovers after 7 years?

If the bank is usurious, it is not permissible to deal with it for purchasing a car or anything else. However, if the bank operates according to the provisions of Islamic Sharia, then it is permissible to deal with it through a Murabaha contract for purchasing a car in installments, provided that a deposit serves as a pledge with the bank until all installments are paid. For this to be valid, the deposit must be in an investment account and not a current account, and the bank must not benefit from the profits of the deposit. If the pledging bank holds the current account, it is necessary to transfer the funds to an investment account so that the guarantee is lifted and the account holder becomes entitled to its profits.