Each driver now considers himself to be a great expert, although I have noticed over and over again that they know nothing at all. What is clearance, for example, and why in cars. To be honest, I have just heard it recently, when I read this article at https://avtotachki.com/en/chto-takoe-klirens-avtomobilya-moya-shema-a-takzhe-kak-ego-izmerit/ , because I do not think it will be a problem to learn the necessary details here and get to know it, I did it and I am very happy abo, so to speak. There is a great deal of useful information about that, too. So read it, if there are any problems and questions, you can always ask, I will try to give you a hint or just read the article. It is easy to write and a novice will be able to easily catch the information and the essence that is there. I hope that for many it will be useful, theory as well as practice in this case is very, very important in fact.