*By Conor White*
The positive [news](https://cheddar.com/videos/tesla-stock-surges-after-q2-earnings-report) in Tesla's second quarter earnings report outweighed the negatives for most investors, sending shares up more than 12 percent to their highest level in a month.
The electric carmaker announced that Model 3 production is up, but it posted losses of more than $700 million.
Some analysts have fundamental doubts about Tesla's future.
"It's a story stock," said Mark Spiegel, managing member at Stanphyl Capital. "What you have here are: bulls who couldn't care less about balance sheets or profit and loss statements; and you've got bears, or as I would call them, realists, who care a lot about that kind of stuff."
Spiegel counts himself in the latter group. He said in an interview Thursday on Cheddar that Tesla didn't do nearly enough to assuage fears about its future ー and that doesn't even account for all the other car companies eager for a bigger slice of the electric vehicle industry.
"There's a massive amount of competition coming for this company," Speigel said. "Between the Jaguar that's out now and the Audi, Mercedes, and Porsche coming out next year, it's going to destroy Model S and X sales, and that's where \[Tesla's\] margin isーwhatever margin they have."
And even though [outspoken](https://cheddar.com/videos/will-elon-musk-behave-on-this-weeks-earnings-call) CEO Elon Musk behaved on this conference call, there's no telling what he will do next.
After reaching its production goal of 5,000 Model 3 cars per week, Tesla reports it now wants to churn out 10,000 per week, "as fast as we can."
Spiegel dismissed those numbers ー and Tesla more generally.
"They're a perennial over-promiser and under-deliverer," he said.
"The reason they keep putting out these aggressive numbers is it supports the stock, which is an absurd valuation. If Tesla were a normal car company losing this much money, the stock would be in the low single digits."
For more on this story, [click here](https://cheddar.com/videos/tesla-announces-biggest-loss-ever-but-shares-rally).
In a new era of transportation, safety testing is critical for cars that are now more dependent on tech than on steel and rubber. The American Center for Mobility is a 500-acre testing facility located in Ypsilanti, Mich., just over 30 miles from Detroit. On the center's highway speed loop, vehicles are tested for safety on a range of roadway and weather conditions. "It's gotta work all the time, every time," the center's interim CEO, Kirk Steudle, told Cheddar's J.D. Durkin.
As the electric vehicle movement takes off, SparkCharge is gearing up to save drivers from "range anxiety" with deliverable charging in 2019. "There's this huge gap in the market in terms of alleviating that pain over where, when, how you charge your electric vehicle," SparkCharge CEO Joshua Aviv told Cheddar Wednesday.
Tesla's latest production miss proves it is no longer a "hyper-growth story," Tesla short Mark Spiegel told Cheddar. Tesla shares tumbled close to 7 percent on Wednesday after the company missed expectations on car deliveries and broadly discounted its vehicles to offset subsidy cuts.
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