Since the Amfleet I cars are the same extrusion as the Metroliner cars, they are not too hard to with existing tooling. If I were to get a set, I would want them to be scale length. I have the Williams and the Welz sets and of the two, I prefer the Welz set. However, a scale set would be something I'd be interested in. Bachmann did a nice set of scale cars in HO in the 70's that I have a set of although they are not great runners. I also have several N scale Bachmann Metroliners in Penn Central, but they are crude at best as the trucks and the wheels are way oversized.
I saw the original Metroliners prior to rebuilding in Amtrak Phase I at Metropark, NJ around 1977 on my first Amtrak trip to Washington DC with my family. The Amtrak Phase II cars are different as they got the "roof bump" added after rebuilding. They served in Keystone service in that scheme into the 80's. I saw them a few times along US 30 near Lancaster. Finally, the Metroliners did not see regular service for the PRR. By the time they were cleared for service Penn Central had arrived. However, many cars stayed in the Penn Central livery well into Amtrak.
One of my favorite photos of the Metroliners is during the winter in Amtrak service where a GG1 was pulling the Metroliner set with all the pans up as the Metroliners motors had failed, but they needed the power for the heat.
Since only 3rd Rail will do them correctly, that is my preference. There is also an opportunity to offer scale cab cars in Phase III, IV and VI.
