I have also (finally) figured out how I might be able to include people's custom tracks and vehicles as well, so that we won't have to wait for every new update to get everyone's cool cars and trucks.
Here's how I would do it:
-TRW would have several boxes, each for the path of a custom car/track.
-Tracks would be in .wmp format, which is the standard 3D GameStudio format. Cars, also, would be, because the body/tires/accessories would be in the file.
-To add a custom vehicle, you'd go into Options>>Custom Add-ons and type the name of each file you want to use as an addon, in the boxes seen above.
-During the loading process, The Racing World would search inside each file in those boxes, and place each on whatever track you're racing on.
During the Setup installation (upcoming demo), there could also be an option to install some extra tracks in there as well. Sierra Logging Run and A Crazier Eight, each by TRI, both come to mind here.
And here's a funny thing I discovered while looking around at the source code. Obviously whoever created the template that I used to create the game is a seriously bad speller.
Code:
// coeficienty of friction contant for arcade type of game
// play with this to change the vihaviuor of the car
Apparently, "coeficienty" is a misspelling of coefficient, and... I have no idea what contant is, but I don't like their vihaviuor about it.