On the most part yes, but not necessarily and not 50% over that time period, so its not the cheap motoring you think it is, its pretty simple, I am sure you get it, but it just blows your main argument out the water.
You should have ordered a Porsche Cayman Gt4 for around 70k, you would have made 35k, thats cheap motoring and until you can show me an ev fetching premiums, you seriously need to rethink its the future line