Okay I would like to make a car controller but nothing like a simulator or anything, I am making a low poly sandbox game and would like a car controller displayed in the video below. I have been working with c# for about 3 years now (2017) and I would like to say I am somewhat advanced in it.
One of the sample projects included with Unity is a car (linked below in Asset Store). You could start by looking at what they do. If you want something that is just a car-looking thing that moves in a vaguely car-like way, you’re probably going to want to learn about adding force to a rigidbody in the forward direction based on axis input, rotating a rigidbody or transform based on input (steering). As far as some of the advanced stuff in there like the tiretracks, etc, I’m not really sure where to tell you to start, but for sure trying to install / look for the sample car that comes with Unity.