The Williams street car is nicely detailed. I have one to run occasionally. I picked up another and took the body off and built up a really old resin interurban kit and placed it on the powered frame it looks and runs well.
I guess you could also use the MTH street cars to place custom resin bodies on.
I would like to see some of the Electric engines that were used to pull several freight cars on the electric interurban railways. But would need something in a compact package that had some pulling power to pull a freight train.
Agree with the above comments on PS3/2.