000000Interesting. This tech was previously piloted about 2014 by one of the JR railways. This time, Asa Coast Railway had three Toyota minibuses custom converted with the Hi-Rail type gear.
There is an on-demand video on NHK Tokyo app. It's basically a half-hour infomercial hosted by a Cathy Cat and some local professor, called Japan Railway Journal.
Switches modes in 15 seconds. Front end has steering locked, jacked up fifteen centimeters (about 6 inches). Back tires still touch the rails and provide the propulsion. They were required to beef up the Hi-Rail arm, isolate from the railroad due to lack of train control system, and build low-ADA type platforms. Driver/Motorman must have both train and bus licenses. Capacity looks like about 19 or so (+a wheelchair??). No way can these puppies be MU'd. Looks like a lot of sway in the highway suspension.