Okay, so, I’ve been wanting to talk about this for a little while, and nobody else seems to have brought it up yet; unfortunately, a search of the forums revealed nothing I could use.
One really significant problem I’ve noticed over the past several months, is that once one starts building more than, say, 30 or so cars or engines, it starts to get a little difficult keeping a track of them all, especially if you want, and/or need, to make changes. Why is that? I’ll gladly tell you: everything you make, yes, everything, is essentially shuffled into a completely random order, with no rhyme or reason to it whatsoever. I myself have built a lot of cars and engines(possibly over 200 at this point), and does, unfortunately, get to be a real pain in the rear to have to search thru all those cars, or engines, just to find one that you’d like to tweak. 
Could you guys please fix this problem sometime? If the selection lists were in alphabetical order, or at least had that option available, it would not only be rather more convenient for those of us who are more than occasional players, but it would also be a rather good-sized improvement to the game, and folks will no doubt appreciate it…I know I would!
Just thought I’d put it out there.