For example, a set of four Pirelli P Zero Run Flat tires for a 2022 BMW 3 Series can cost $1,270.40, according to TireRack. A set of non-run flats for the same car, like four Michelin Primacy Tour ...

Bridgestone’s third-generation run-flat tires seem to represent a solution with far fewer compromises. It is a path we are finally willing to take. Featured Gallery. 2 / 0. 2 / 0 Zoom In .

Self-healing tires promise to help mitigate the dangers and frustrations associated with getting a flat tire, but do they actually work?

Bridgestone is a leader in run-flat tire technology. Porsche chose the company in the mid-1980s to develop a special run-flat for its 200-mph 959 supercar, and they have been innovating ever since.

Run-flat tires are also more expensive than their conventional counterparts — they often sell for $40 to $65 more than conventional tires — and they're not always repairable after a puncture.

Contrary to popular belief, run flat tires (RFT) were first developed by Michelin during the 1930s, but they would go on to be offered as standard on our everyday cars nearly seven decades later.

Our grandparents would agree that they're a modern miracle: tires that keep on turning even when they're flat. But how exactly does a run flat tire work?