Tesla Overtakes GM As America's Most Valuable Car Company

It's official - for the first time ever, Elon Musk's government-subsidized car-maker is America's most valuable auto manufacturer.
Tesla shares surged another 1% today, amid a continued "trouble in shortville" ramp, topping $300 for the first time...
That gives the company a total value of $52.7 billion.
That's more than GM's $49.6 billion valuation. Tesla chief executive Elon Musk says he expects the company to sell 500,000 cars next year. GM, meanwhile, sold more than 20 times that many last year.