: I tried for about half an hour and got nowhere until right at the end, then
: the game crashed. I forgot to mention, sometimes even if you do all the
: steps right the game might crash, either that or every time I've seen it
: done has involved some missteps. I'll try again after lunch.

Well, I tried a bunch of things, and I can't get multiple vehicles merged into things to work, only one vehicle will spawn, but having them unconnected to anything sort of works. The result is basically undrivable, at least with the testing I did. I have some more things to try though.