is there any way I could add my own car?
maybe modify one of the existing ones to go faster?
im interested in learning godot and feel modifying this is a good starting point.
I wrote a thread for GTPlanet that shares much of what went into making GDSim:
https://www.gtplanet.net/forum/threads/396400/
You can also check out Dechode's advanced vehicle controller, which used my GTP thread as a resource: