By Luc Olinga Tesla’s CEO just opened the electric vehicle maker’s fourth production plant. Elon Musk has just made new promises. Tesla’s (TSLA) – Get Tesla Inc Report CEO has just inaugurated the latest Tesla factory in Austin, Texas. This production site is the fourth manufacturing and assembly plant for Tesla vehicles. It is also the second in production in the United States after Fremont in California. On this occasion, Musk made many promises. But there is one that will undoubtedly stick. It concerns the Cybertruck. This futuristic vehicle announced in 2019 but whose production has been p…