Note that if you use Wayland you must use OSGgraph (Options --> OpenGL -->Graphic Engine). The problem is that Wayland is not compatible with our previous graphics engine, SSGgrpah , based on pLib. With Xorg there should be no problems.
There is the possibility of network multiplayer, but, despite being playable on LAN, it is disabled as it is very experimental and has a lot of lag and bugs over the internet.
It can be played in real time split-screen using the old SSGgraph graphics engine and by putting two or more human players in a race.
We hope in future versions to rework or rewrite the work done to allow online multiplayer.
That didn’t have what I was looking for, found out the the car category effects the car xml, all sorted now I believe, fully configured xml now and I placed it in a new category. (Lemons class B)
It is very likely that in the next release OpenSceneGraph will be the default graphics engine to avoid these problems.