It means they bet on vertical integration, and they make product decisions no other manufacturer has the balls to make, and win because of it. Observe how _nobody_ can make a laptop that's better than MBP in spite of having several _decades_ to observe what Apple does. The same is the case here. Tesla has insurmountable avantage in this regard simply because they are not a "traditional" car manufacturer and have no "legacy" they have to maintain.

But the best explanation is to just go to a Tesla dealership and take one of their cars for a spin. It _feels_ like iPhone.