chrisjo Hmm.... good question. Working on it. I can identify the event: Minpla Driving Party in Kyoto 20th & 21st May: みんプラ運転会 https://rekisaikan-jp.translate.goog/news/post-news/post-11152/?_x_tr_sl=ja&_x_tr_tl=en&_x_tr_hl=en-US&_x_tr_pto=wapp
Super Many thanks Dr Chris. Looks to be a fun event. It also looks like this is motorized as it looks like an on/off switch on the lead car (on right). It doesn't look like a Plarail custom unless they added the between car gangway connectors.