Dana Hull, reporting for Bloomberg: Tesla's Elon Musk keeps getting the green light to do what it takes to bring electric cars to the masses, regardless of how much it's going to cost. The company burned through $1.16 billion in cash in the second quarter by spending on capacity for its cheapest model yet and boosting battery output. Investors fixated instead on what Musk said is coming next: Hundreds of thousands of Model 3 sedan deliveries, installations of solar roofs and an all-new semi truck to add to the lineup. "This is the best I've ever felt about Tesla's future," Musk said on a conference call. The stock surged as much as 7.4 percent to $349.94 as of 9:45 a.m. Thursday in New York, the biggest intraday gain in four months. The chief executive officer has built a fanatical following of Tesla shareholders who continue to throw their support behind his clean-energy vision. It helps that consumers keep opening their wallets: The Model 3, which starts at $35,000, has racked up almost half a million reservations and is drawing more deposits by the day. The record negative free cash flow Tesla reported for the three months ended in June was almost double the $622 million it went through in the first quarter. With a little more than $3 billion in cash on hand, Musk told analysts the company is thinking about raising money through a debt offering.