I think that's a pretty specific tutorial so it's going to be kind of
hard to find something like that. I think generally, if you're familiar
with how to make a racing game, adding in a second player will make
sense to you so I would recommend starting with learning how to make a
single player racing game.
If I find any good multiplayer tutorials, I'll be sure to let you know.
Also, for the future, when asking a new question, please just start a
new thread. When you asked this question in the other thread it just kind of got lost in there and didn't really apply to the original posters question and we'd rather be able to find your question and answer it quickly then not realize a new question had been asked. Thanks!
