I would say that Tesla is more than just an automaker. Their autopilot may make them a taxi and cargo transport company. Their solar and battery technology may make them a utility company.
I know what you’re trying to say, but you need to realize that the current price has been set by buyers who believe that the value of Tesla is higher than that price, and by holders who refused to sell cheaper.
One of Warren Buffett’s most famous quotes (via Benjamin Graham) is, “Price is what you pay; value is what you get.”