Bar Cars

More capacity for the same cost is the case with double-decker commuter cars -- if they can fit into tunnels, that is. Bi-level train were once more common in the commuter trains serving NYC. However, these cars can have their own disadvantages.
Aug 20, 2010   The New York Times - N.Y/Region
As reported earlier this year on Planetizen, the bar cars on Metro-North Railroad's Connecticut trains: train cars were hitting retirement age, and it looked like no replacements were coming for the pubs on wheels. But wait- there's hope yet!
Aug 14, 2010   The Wall St. Journal