Is there any possible way of importing vehicles from Rigs of Rods and maybe re modeling them in a editor then back to the game?
http://wiki.beamng.com/Migrating_Content Obviously, you would need permission from the original author, if you didn't create the RoR vehicle
Oh now i understand what you meant you would neet permission to import the guy or guys who made the car
That's already pretty basic, just node, beams, wheels and hydro, half of the jbeam things aren't used.
If you do not share the imported car, you do not need the consent of the author. As long as it is for you.