> the idea of all wagon individually powered is ancient, very ancient, like monorails. Both ideas never get spread simply because they are too expensive instead of cheap, in practice.
> it sound extra added complexity for little to no return
What on earth are you going on about?
The vast majority of all current and new passenger trains in the EU are multiple units with no power car, because they are pretty much better in every possible way. They are cheaper to build and cheaper to operate(mainly due to being lighter overall) and can be shorter without reducing passenger capacity. Only a couple of the wagons are powered, more is not needed.
> hyper-fast accelerations are not much welcomed by passengers
Passengers want to get where they are going quickly. No train accelerates at a speed which causes discomfort to passengers.
Maybe it's a translation issue: I simply say most trains in the world are not self-propelled wagons but one ore two with motors and the others pulled/pushed by them. And no, in the EU most trains have a single or two locomotive, only metros have SOME all powered trains.
> Passengers want to get where they are going quickly. No train accelerates at a speed which causes discomfort to passengers.
Maybe you haven't used Milan's red lines where accelerations are enough to catapult anyone standing distracted at every start or stop. Remember that sometimes trains are crowded and nowadays it normal to have toilets always open because trains collect anything instead of freely discharging in nature, since more than two decades, so it's normal to have people standing while in start/stop phases.
That's just not true. The most exported high speed train is the Siemens Velaro which has motors along the whole train. And multiple units are very common in regional and suburban trains, S Bahn style services.
What on earth are you going on about?
The vast majority of all current and new passenger trains in the EU are multiple units with no power car, because they are pretty much better in every possible way. They are cheaper to build and cheaper to operate(mainly due to being lighter overall) and can be shorter without reducing passenger capacity. Only a couple of the wagons are powered, more is not needed.
> hyper-fast accelerations are not much welcomed by passengers
Passengers want to get where they are going quickly. No train accelerates at a speed which causes discomfort to passengers.