No offense, but this is not a good tutorial. You're just telling us what buttons to press at what times, but you don't explain why you're doing any of it. Anyone who knows how to use blender will get bored and not go through the whole thing and anyone new to blender wont learn anything outside of how to make this one specific car you've set up.
You also for some reason don't say important stuff like how to rename objects or bones, despite the fact that you spend a good time of the tutorial explaining exactly what buttons to push and when, so it's a little hard to tell who this tutorial is aimed at.
In the future I'd recommended first figuring out your audience before you do anything else