This feels like a permutation of run flat tires. - Have half the life of regular tires - Makes the outer tread extremely hard (and noisy) - Consumers get the

This feels like a permutation of run flat tires. - Have half the life of regular tires - Makes the outer tread extremely hard (and noisy) - Consumers get the blame because they want safety (without the effort of a spare tire change) - Increases the price