We have phones that can survive being immersed, watches you can drag over a cheese grater and screens you can fold without breaking, but a common nail can strand your car on the side of the road. Tires need to lose their air, but not that way.
Michelin is one of several tiremakers that have been developing airless tires but they seemed as improbable as GM's early vision of self-driving cars. Now, however, the two companies are putting a pin in the calendar to have airless tires on the market by 2024.
The first thing you notice about the airless Michelin Uptis, or Unique Puncture-proof Tire System tires is that you can see through them. Glass fiber reinforced plastic vanes support the tread rather than air pressure.