What is the ruling on an installment company that requests a percentage of 6-8% of the car's price, then buys the car and registers it in the customer's name after taking his information?

There is no objection to selling a commodity owned and possessed by the company for a specific price, part of which is cash and part deferred, or all of it deferred, as long as this occurs after the company has taken ownership of the commodity. It is permissible for the interested party to describe the commodity before it is purchased by the company.