> "They are a battery company."

Not really. Tesla, like most automakers, purchases most of its battery cells from other companies (Panasonic, CATL, LG Chem). In recent years they have started to manufacture their own cells as well, with their 4680 cell manufacturing line at "Giga Texas". But this is a small portion of the cells they use globally.

Very expensive batteries compared to the competition

The comparison is actually even worse if you compare it to other companies on the battery sector. How is Tesla supposed to be five times more than CATL ffs?

The cars are actually a way to drive yourself around town. Yes they also contain batteries.