making racing games certainly isn't simple (as gogo has said) and when you look at TORCS you're realise it.
But saying that, I was planning to make a small Irrlicht-based Racing game myself to put irrAI and irrPhysX through their paces (simulaneously developing a Racing-AI-Module and Vehicle-Physics for irrAI and irrPhysX respectively) so maybe (just maybe) you could join me for some hands-on-experience
It would be an open-source and public project, a-la Christian's First-King project.
Planning to start on it next year though (not long now
![Razz :P](./images/smilies/icon_razz.gif)
) after irrAI 0.5 becomes available