The automotive industry is – generally speaking – all about making money. Even the most expensive car brands out there selling $200,000+ models will look for ways of cutting manufacturing costs as much as possible, so their profit is as big as possible.
That’s how you get BMW parts in a Rolls-Royce, for example, or Volkswagen components in a Porsche. And the world of electric vehicles is no different; the brands trying to make a name for themselves in this space are still businesses that need to make money in order to survive, so they adapt.