A perfect example of Eberhard's arrogance is the whole 2 speed transmission debacle. Eberhard absolutely insisted on having a 2 speed transmission to achieve the performance numbers that he advertised way too early, Magma warned them very early on that was a bad decision but he didn't listen. It almost cost them launching the production model at all (luckily Musk had the idea to launch with a temporary transmission which was upgraded later).
Notice the Model S uses a 1 speed transmission.
In my opinion, the only reason Eberhard was so insistent on the 2 speed transmission was because he DIDN'T have 70 million of his own money invested. Musk saved the company as far as I'm concerned.
Also, isn't it unreal how this company was paying the founder 200K a year with no revenues and a balance sheet that would make most start up founders sick to their stomachs?