We've even seen prototypes for everyday cars that roll ... dealing both with cost and durability. And certainly, people are not going to be happy if these airless tires wind up not lasting very ...

To avoid complication of neglectful car owners, several manufacturers have been developing designs for tires that don’t use air at all. The vast majority of airless designs follow a similar theme.

Their airless tire concept that never goes flat ... Yennie eventually revealed that car tires would cost around $700 to $800 each, the typical price point for a high-performance model.

Airless tires have ... tread off of a traditional tire and wrapped it around each of the four assemblies, then bolted them up to their Caterham street-legal race car for testing.