Tesla Inc (NASDAQ:TSLA) CEO Elon Musk on Monday said that he is working on the EV company’s fourth master plan. What Happened: “Working on the Tesla Master Plan 4,” Musk wrote on X, formerly Twitter. “It will be epic.” Master plans outline Tesla’s future strategy. The first Master Plan was written by Musk in 2006, during the initial years of the EV company. The focus then was cars. The plan, Musk then said, was to create a low-volume expensive car to generate enough money to develop a medium-volume car which is priced lower and thus forth. The second master plan, introduced in 2016, focussed o…