Single vehicle that could potentially satisfy every customer's desires.
of course not everyone wants quality
but every person has thier own definition of quality which they're rarely willing to share with you and even when they do share their vision and you deliver.
there's nothing to stop arrival company from coming up with new features.
The customer never even imagined and now your customer has changed their quality definition and they're very likely no longer your customer to complicate things further how we specifically define quality