Could someone possibly try to make a working dirtbike in this game? Not sure if its possible with the current physics...
Well, it is possible, just hard and won't perform well, you would have invisible nodes on the side holding the bike up when it first spawns and when it goes slow so people can actually use it, kinda like how @Bernd did the Hovercar
http://www.beamng.com/threads/create-a-motorcycle.28365/page-2#post-424308 Check this post and some other ones in this thread. Definitely possible and and @Bernd might be making one or have experimented making one.
@Darren9 made a better working and more realistic version afaik. What I did is a monocycle, works quite nice, still early wip though. Manual required.
Maybe we'll get more fancy stuff by the devs after the command beams that could be used for something like this .