https://www.cnbc.com/2018/04/17/elon-musk-internal-email-6000-model-3s-per-week-by-june.html

Tesla shares bumped up more than 1 percent in after hours trading on Tuesday, after electric vehicle blog Electrek reported it obtained an email from Tesla CEO Elon Musk, that says the company is halting production at its two main factories for several days to upgrade equipment, and aims to produce 6,000 Model 3 cars per week by the end of June.

CNBC confirmed the email's authenticity.