In late April 2018, Athearn announced that it will re-release its n-scale 50 foot FMC Centered Double Door Box Cars ($22.98) in 3 new road numbers each for 5 road names: British Columbia Hydro Railway, Hartford & Slocomb, McCloud River Railway, Canadian Pacific ex Procor and Union Pacific. Orders are due May 25, 2018 with an estimated delivery of April 2019.
Similar to other Athearn releases, this product will feature body mount couplers and machined metal wheels. For more information about this re-release, here is a link to the Athearn pdf for this product.
Here is a link to other Athearn N Scale 50 foot FMC Centered Double Door Box Cars on TroveStar.