It's doesn't matter. Tesla's stock price is around 450 times its cash flow, which is an order of magnitude beyond insane for a public company. Apple is around 30. The average S&P500 company is around 15. For Tesla's stock to be worth the same relative to the company's business as Apple the stock should be 15X less than it is now. To justify this price they would have to sell 15X more vehicles. Apple's gross margins are like 30%, cars are probably just a few % due to the complexity of making something as big as a car. Unless Tesla becomes the only seller of cars in the world, there is no way it will ever be worth the current price.