If you are in Saudi Arabia and are planning to buy a used vehicle then this video is for you. I have shown my personal experience by using MOJAZ service and Computer Test as well. This method will help you to know each and everything about used vehicle which you are planning to buy from the owner or used vehicle showroom.
Video link: https://youtu.be/QJBS2xdUWyU
You can also find video link in first comment as well, good luck.