Largest by market cap. That's mainly due to investor hype. With that logic, you can argue Nikola was a top 10 largest car company in the world at one point (wit

Largest by market cap. That's mainly due to investor hype. With that logic, you can argue Nikola was a top 10 largest car company in the world at one point (with zero vehicles delivered). Tesla is not even in top 10 in terms of revenue or number of vehicles sold.