Tesla Motors investors had better brace themselves. The electric-auto maker said on Wednesday that it aims to produce 500,000 vehicles two years earlier than planned, amid strong demand for its new Model 3 sedan. Such ambition is typical for Tesla boss Elon Musk, who is also behind the SpaceX rocket venture. The cash and technical capabilities involved, however, will heighten operational and financial risk along with the potential rewards.



People test drive the new all-wheel-drive version of the Tesla Model S car in Hawthorne, California October 9, 2014.

The new production target for 2018 – six times this year's anticipated output, and more than a quarter of global BMW-branded sales in 2015 – combined with a first-quarter loss that was a hair narrower than expected, pushed the $31 billion carmaker's shares up in after-hours trading. Tesla, which has never made an annual profit, now trades on a whopping 180 times this year's expected earnings, according to estimates tracked by Thomson Reuters. It's valued at 44 times the profit Wall Street analysts had been penciling in for 2018.