Is it possible to upgrade a tractor to a truck? Or do you have to delete the tractor and it's route then build a new truck and a new route?
I ask as i have a fairly laborious route from my oil refinery to my base and having to delete the tractor, build a new truck and re-plot the whole route is going to be a pain. Would be nice just to upgrade the tractor and say, "right, know that route that you've been doing? You're still doing it but now you're a truck bringing a butt load more oil home to me. Go forth and prosper!"