Elon Musk, founder and CEO of Tesla Motors says the electric car company is now building more than 500 Model S vehicles a week and is on target for a major ramp-up in production next year.
"Our big issue is raising production," Musk told CNBC while walking the company's assembly line in Fremont, Calif. "We don't want to be complacent about demand, but our goal is to increase the pace of production. By the end of next year we want to do 40,000 annually."
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To hit that target Tesla will have to boost production by another 35 percent. That's the big question facing Musk and his team at Tesla, as demand for the Model S continues to grow.
On Wednesday, the company said it is now set up to take reservations in China, the world's largest auto market.