In 2019 vbe already get 160 sanctioned for the train sets
It doesn't mean that TMs will do the same job at same power out put with 24 coaches
Have u ever seen even memu? Running with 24 coaches?
Even they dont run at high speed
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high speed they run at 100 kmph
.
Current VBE can run even at 200 kmph
But if u increase the coaches more the load more time to take acceleration even if TMs are there, its basic physics
More things take more time
Do u think if VBE get 24 coach it will do 100 kmph in 52 seconds again?
Plus Indian VBE is low cost semi high speed train not with all advance features, it dont even have tilting technology to operate on high speed
Therefore talgo was again imported in India by bharat forge i guess to make sleeper VBE with tilting technology...
Even bullet trains dont run with 24 coaches
Indian bullet will use 6 coaches configuration

There is no testing track thing..
However NWR really done any test recently?
For high speed trials always done at kota section under wcr
For curve and slow trials done at Mb Division
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what we are seeing from talgo, vbe 1st one..