A man owns a new car and wants to exchange it for another car that is cheaper, paying the difference. What is the ruling on that?

The questioner : A man owns a new car worth eighteen thousand dinars or riyals. He wants to exchange his car for another car owned by someone else, worth ten thousand dinars, for example, because it is old and used. They agreed to complete the exchange, with the second man paying eight thousand as the value of the difference in quality between the new car and the other car. Is this permissible?

The Shaykh : I see no obstacle in that, because a car and things like it are not among the six types of items subject to riba. Therefore, it is permissible to exchange a car for another car, even if there is a difference in value. How much more so when the difference exists between the two cars? There is nothing wrong with that.