www.virtualrc.com You can download the game for free with 2 tracks, Oslo Norway and Rc speedway (oval).

From there on it is about $9 AU for a track, there are currently 13 world tracks out right now. You can also buy a usb adaptor that you can plug into your reciever and use your own control.

There is also online racing against people from around the world, right now its racing against the clock and whoever gets best times proceeds to next round and ultimately the 45 minute final.

Multiplayer will be coming out soon though so you can look forward to that.

And finally the answer to your question lol you pretty much adjust anything you can on your real rc car, they want the game to be as real as possible so have put in all gear ratios and top major brand cars for 1/10 and 1/8.

Matt