horse-drawn rail car

[Brit]

Possibly not what was asked for, but...

"In Imran’s new Pakistan 90 yr old horse train are still running".
https://www.youtube.com/watch?v=2qJhbRrQbY4

B&W film of the last line in The U.K.:
https://www.youtube.com/watch?v=RfO9ySKK3Ns

Both seem the sort of vehicles that could be built. The second one could even still exist as a Heritage Line somewhere still run by volunteers in T2K...