However, Tesla today is an integrated energy company. They make Solar Cells (the part of the business formerly called SolarCity), Stationary Battery Systems (generally referred to as Tesla Energy) that range in size from residential to grid sized and of course cars (which ultimately also use batteries).
Comparing them to car companies is like comparing Amazon with bookstores. Yes Tesla is a car company and yes Amazon is a bookstore. But both both of them are so much more than those simple comparison.
In fact I suspect the Amazon comparison here is rather apt because Amazon is now in the situation where Amazon Web Services is essentially able to prop up the retail business. I suspect Tesla Energy will be able to prop up the car business in the near future.