Pretty sure it's just the three offered by Lionel, R27 (Green), R30 (Red) and R16 (Blue/Silver). All MTA (New York City).
Some of the MTH Premier ones have opening doors(original R32 and the DAP graffiti version of the R32, maybe others?), but are all manual I believe.
As to whether they are trouble free, I believe the hard-wire link between the cars made them much more reliable than the opening doors on the Acela models(which used infra-red link between cars).
-Dave