Tesla (TSLA) reported third-quarter earnings that beat analysts' expectations as margins improved, sending shares higher in extended trading Wednesday. The electric vehicle (EV) maker posted third-quarter net income of $2.17 billion or 62 cents per share, up from$1.85 billion or 53 cents per share a year ago, topping analysts' estimates as margins rose to 19.8% from 17.9%. Revenue grew 8% year-over-year to $25.18 billion, slightly missing the analyst consensus from Visible Alpha. Earlier this month, Tesla ...