ÉcoTrain: €3 million to answer the wrong question
https://jonworth.eu/ecotrain-eu3-million-to-answer-the-wrong-question/
The problem with branch lines is seldom THE TRAIN. It is THE TRACK and the lack of available finance. Some autonomous Gadgetbahn is not going to fix that mundane problem!

ÉcoTrain: €3 million to answer the wrong question
It is one of the 100 startups to watch in France, according to Challenges - ÉcoTrain wants to build a new train to run on abandoned branch lines, and they have €3 million of initial funding. They even brought their prototype to the Elysée, and you can find more background