Shares in the electric carmaker tumbled to $217 at market close following an event in Hollywood, where the chief executive, Elon Musk, revealed a much-hyped driverless vehicle. The stock price is down roughly 12% year-to-date.
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However, analysts said the event was short on detail and also expressed disappointment over a lack of specifics about other Tesla projects. Musk has a history of making grand projections about upcoming products and failing to follow through in the timeframe he has set, or at all.