Sorry, sightseeing, transit and planning has taken priority. I typed up the below on shinkansen (from Tokyo to Kyoto) last night but couldn't get my laptop to tether w/my phone (iOS tethering is very flalky) and the train's wi-fi was useless and unusable. Tokyo station to Kyoto station by car is a min of 461 km (about 286 miles). The Nozomi train took about 2 hours 18 minutes including the couple stops it made. Fastest I saw it go per my GPS monitoring apps was ~175 mph.
Too bad shinkansen travel isn't cheap. It was over 13.3K yen for a non-reserved seat (over $120 USD). Reserved seats were sold out for the day and it was CRAZY crowded on the train platform w/tons of people in line to get into a non-reserved car.
I'm 90% sure the train I took was the very popular https://en.wikipedia.org/wiki/N700_Series_Shinkansen given that I took https://en.wikipedia.org/wiki/T%C5%8Dkaid%C5%8D_Shinkansen. I've also taken https://en.wikipedia.org/wiki/San%27y%C5%8D_Shinkansen in a past trip.
They really did a good job w/reducing the tunnel boom (loud noise you hear when you enter and exit a tunnel). Was mentioned at the Nagoya train museum I visited years ago. I rode on https://en.wikipedia.org/wiki/300_Series_Shinkansen ages ago and the tunnel boom on those was quite loud and would shake the train.
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I'm typing this while a bullet train to Kyoto right now. It is standing room. Fortunately, I was able to get a seat, unlike the many folks who are standing for a 2+ hour train ride. Unfortunately, by the time you asked, I was already done with TMS and wasn't planning to pay for a 3rd day's ticket.
Unfortunately, I can't answer either. The MX-30 was up on a platform and there as no way to see it. The Lexus EV they showed was definitely way too much of concept and very far from production w/gull-wing doors and that.
So, you'd be best off Googling to see what you can find. It's safe to assume that if released for Japan it will have CHAdeMO. I've never heard of either CCS standard here in Japan. Even the German automakers are and have been putting on CHAdeMO on Japanese versions of their EVs (e.g. i3, e-Golf and now EQC).
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Side note, I visited http://www.kyotorailwaymuseum.jp/en/highlights/ and was surprised they actually maintain and run some coal-burning steam locomotives that you can get a brief ride on (well, towed by the engine). As someone who's been coal-rolled and seen it too, this is literal coal rolling.
There was a big bin of coal nearby and I saw a forklift dump more coal into the engine's bin in the back.
I saw them use the turntable (shown at https://www.tripadvisor.com/Attraction_Review-g298564-d10251298-Reviews-Kyoto_Railway_Museum-Kyoto_Kyoto_Prefecture_Kinki.html#photos;aggregationId=101&albumid=101&filter=7&ff=213129413) to turn a train a bunch of times.
update: My trip's coming to an end soon. As I posted in another forum: I arrived 10/28 and am leaving 11/5, Japan time. I stayed in Tokyo the most time but also have stayed in Kyoto and now Osaka. During this time, like before, I've seen very few EVs here. In the wild, I can only recall seeing 2 gen 1 Leafs and 1 Model 3.