In 2024, the LT&L decided to operate a demonstration passenger service between Portland & Brownsville Junction, ME to show the state of Maine and Amtrak that it would be feasable to operate passenger service along those lines. To do this, passenger equipment was needed, and the Portland shops proposed rebuilding some of the old class 10P motors & 9P trailers that had been stored since the PV&T and LT&L last used them in the 1970s/1980s.

This was not as crazy as idea as it might seem to be, because these units had been stored under cover since the end of their passenger service (the Portland shops was, after all, built along the (abandoned since 1938) Hollis to Westbrook section of the original PV&T Montréal to Portland mainline, and had plenty of room to put up car sheds for more fragile equipment) and had been pulling some of these cars back into service for first the CdfC’s tourist/ski trains and then the TSR’s Brampton demonstration commuter line.

There were still 6 10P’s remaining (2 10PCB, 4 10PC) cars remaining, of which 4 were rebuilt and two were scrapped for parts for the rebuilding.

The rebuild involved splicing 7 feet into the center of the cars, adding a center door for high-level platforms, and removing the old DC drivetrain with a more modern multisystem one that could produce 1000HP/car (way overpowered, yes, but the intent was to operate these cars in trainsets with 4 trailers on the increasingly busy mainline between Portland & Bangor, and they needed to be able to outrun the priority container trains on the line.

The first two cars (10PCBs #E76 & #E77) were finished in mid 2026, with the remaining 10PCs (#E64 & #E82) following soon thereafter.