I don’t remember exactly which ones but I believe the last few were taken off the road 2002 December or January 2021, Or very shortly after.
I remember in the end there was only a handful on the final days. They were not retired in large numbers or all at once but little by little.
what I do remember is the final one on the road retired due to the fuel pump dying.
The first REM vehicles have arrived in Montreal. https://rem.info/en/news/first-cars-arrival
I invite you to check out the link, which features pictures from its arrival at the port in New Jersey, all the way to Montreal and the REM facility.
Very impressive, and great initiative for them to show this level of detail.
Your photos are atmospheric; way cool Tunneys photo. The stairway in this photo one example of where there would have been a down escalator, plus a still quite wide staircase, but escalator removed due to 'value engineering.' The design, however, does allow for an escalator to be added at a later date.