But you're factually wrong! He did look up the history of how to propel and sell cars.
I think it was Marc Tarpenning who gave a lecture explaining that in the early days of Tesla they researched all the startup car companies of the late 19th century and figured out which business models succeeded and which failed. Of course, most of this 19th century history is long-forgotten by most people now -- they did their homework.
This is why Tesla started at the top of the market, not at the bottom of the market like all the other -- failed -- EV startups (which were run by people who didn't do their homework). Because Musk, Straubel, Tarpenning, and Eberhard did do their homework. They figured out you had to start at the top of the market.
History is different from the current rule book. Indeed the history can be full of good examples to suggest one to throw out the current rule book: which says to propel with ICE and use franchise dealers to sell. And it says to have a UI with a thousand expensive buttons in the cabin etc. He absolutely threw out the rule book and we are the beneficiaries of him having done so.