CJM413 and Maletrain: Thank you! Up close, they're more basic than they look, but then, RTR Nn3 isn't all that detailed, either. I tried to make mine comparable to the Microtrains Nn3 cars, and think they turned out well. They certainly show that Bachmann could do better!
As small as they are, I went for "impression" more than "superdetailed", partly because I didn't want to spend a long time on one car. Someone who wants a single special car could take the time to install free-standing grabs, bolts on the corner braces, etc, etc. I did that on a couple cars, but at normal viewing distances, the work doesn't show anyway...