An interesting anecdote, but I've never understood why anyone would willingly drive a car (electric or otherwise) such a long distance. The longest I've ever driven in a single trip was a bit over 750 km, and I think I slept for 16 hours straight after I arrived. The next time I took that same trip, I rode the train instead.
You can use the train trip to read (or sleep if you can do that, I can't) but you also can't really put your music or podcasts and you have to deal with other people. The train changes can also be very stressful.
Then there's traveling at your destination, if you need a car at your arrival the advantage of the train plummet, whether you need to rent one (which is expensive) or borrow one (which imposes on your hosts).
FWIW that's exactly why despite being in europe after years of taking the train when I go back to see my family I ended up now renting a car instead (I usually live car-free):
* both my own home and my family are a bit out-of-the-way, there's public transport (though not ideal) around my own home but none at the destination so I'd need to impose e.g. be fetched at the train station, with regular issues of delays and friends
* by train the entire trip takes about 8 hours, with 6 transport changes (some rather annoying / stressful), by car I can take a more direct route so it only takes 0530, and I can stop when I want (I usually end up stopping twice and taking between 0600 and 06:30)
* by train there is no real independence unless I rent a car anyway, I just end up bothering to go see the rest of the family, meanwhile renting a car lets me more actively help
* even if I don't rent a car at the destination, the financial gain of the train is basically nil, the train is rather expensive unless I take a slow train and basically need two days to make the trip
* and finally carrying shit in the train is a pain in the ass, both ways, I can easily load presents or stuff in a rental car, and bring comfort food or whatever back, there is no space premium of any sort