#1 Problems with un-connected lines

[Anonymous]

Two things:
One, when objects (like the buggy in your first
example) are directly a line surface that isn't cleanly
attached to another line surface, the buggy goes crazy.

Secondly, and this really isn't a bug, but here it
goes: Wheels don't have rotational friction. Seems like
quite a minor issue, but I had to mention it. Hope some
of this helps. This is an awesome project.