Thank you!
I am glad you liked it! I used console because it is difficult to write something with good graphics in C language. That's why I tried to do the best ASCII art graphics. About colliders, I used an interesting way - I created a new screen, with white (@) and black ( ) symbols, these are barriers. And I check if car is in these white characters, and if it is, then game over. I think it is not a best way, because of new array for checking every "pixel", but at that moment I don't knew what is the better way.
However thank you for comment. It is useful, when I read comments with pluses and minuses of my games, because I can do it better, if I know what other people think about this.