NEW YORK (TheStreet) -- Shares of Tesla Motorsa are down 1.85% to $258.94 in morning trading on Friday asaGoldman Sachs asaid the company may need $6 billion in capital to build a battery factory toaboost production, Bloomberg reports. Analysts remain cautious on the electric car companyadue to the Gigafactory's aggressive timetable and Tesla's potentially increasing capital needs for future projects. Analysts at the firm keptaa "neutral" rating with a $210 price target on the stock and cited valuation that reflects flawless execution. Must Read: Warren Buffett's 25 Favorite Stocks STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months.