Today’s newsletter articles come to you from on board the Amtrak Auto Train. It is the world’s longest train (according to Amtrak).
It also is a mixed-use train, transporting both passengers and freight. In this case, the “freight” is limited to automobiles and motorcycles that belong to the passengers. It operates non-stop service for 855-miles (1,376 km) from Lorton, Virginia (near Washington, DC) to Sanford, Florida (not far from Orlando) and return. See the details on Wikipedia at https://en.wikipedia.org/wiki/Auto_Train.
As I write these words, I am in a two-level Amtrak passenger car and my mini-van is (hopefully) safe and sound in a specially-designed auto-carrying freight car a few hundred yards behind me. Right now we are all traveling at about 75 miles per hour through the Virginia countryside, southbound to Florida.