Definitely some interesting stuff there Sun, as Super has already said the 4 car Shinkansen is almost certainly not Plarail. As you know I like dabbling in non-PlaRail, but its not a type I recognise, the connectors look quite a bit different to the average and the power car looks to be the 2nd (or 3rd) car depending upon which end you start counting

Happily collecting things all my life...
