Morgan Stanley says Tesla just got a 'critical unlock' for its bullish autonomous driving ambitions

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• A "critical unlock" for Tesla's self-driving car tech came from the insurance industry this week.
• Tesla could benefit from Lemonade's autonomous vehicle insurance, Morgan Stanley said.
• The insurance startup will be rolling out a new product for self-driving cars, starting with Tesla.

Tesla's car sales may have struggled recently, but Morgan Stanley says a recent update in the insurance space is a...