Calculation of range and driving pleasure

Hello fellow ebikers, I found a very interesting article written by Lomito the project manager for the forum based in the Netherlands. He has come up with range and driving pleasure formulas that allow for what , I believe should give a fair comparison of the performances of ebikes with hub drives, mid drives technologies. This site is written in dutch but google chrome translate function does a fair job and makes this clear
I am curious to read your comments about his methodology. I hope that am not violating anyones copyrights or any rules for his or this forum.
Check it out!
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