Is it only hype? What about road adherence, endurance, etc. As long as I don't see independent assessments by car journalists, I'll reserve my judgement.
But if they live up to the hype, it will be a game changer indeed.
IIRC they have some interesting attributes. Lateral stiffness is incredibly high, but IIRC rolling resistance is higher and they are quite a bit heavier than standard tires. Seems like there might be some interesting capabilities to pump air one way or the other for aero purposes.
But if they live up to the hype, it will be a game changer indeed.