I think it would be kind of cool to set up a Club Train that starts at Central, runs a loop and heads off again. You could serve drinks and have music and lights, plus big soft couches along the sides of the carriage to sit in. The biggest problems, I suppose, would be getting people drunk and allowing them not only to try and dance in a moving vehicle but navigate on and off a train during the night. Still, I kind of like the idea. It's the sort of thing I imagine when I'm on a crowded train heading home in the evening.
Mokalus of Borg
PS - Imagine seeing that thing go doof-doofing past your station.
PPS - There are problems with the idea, but it's a fun thought.