Shares of electric car maker Tesla Motors Inc. (NASDAQ: TSLA) have plunged in trading today after the company’s sales for the third quarter disappointed some analysts. The company’s fourth-quarter profit outlook also disappointed investors. TSLA’s Model S deliveries totaled 5,500 in the third quarter. This was below the estimates of Barclays analyst Brian Johnson and Deutsche Bank analyst Dan Galves. TSLA shares fell to an intra-day low of $146.35 earlier today. At last check, the stock was trading 14.61% lower at $150.97 on above average volume of 23.39 million.