Investors have long debated whether Tesla (NASDAQ: TSLA) should be considered an auto stock or a tech stock. While Tesla's primary products are electric vehicles (EVs), many aspects of its business -- like self-driving vehicles and connectivity subscriptions -- give it a tech flavor. Plus, if you look at Tesla's margins, they don't look like a traditional automaker's at all.

However, there has been a shift in one of these factors recently, and it could signal Tesla's shift to one side of the debate.

Over the past few years, Tesla's margins have grown to levels that most legacy automakers (except ultra-premium ones like Ferrari) could only dream of.

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Source Fool.com