According to Sky News:

Potholes could soon heal themselves, according to a team of researchers.

Teams at Swansea University and King's College London have been working with scientists in Chile on the research.

Work is ongoing to develop a new type of "self-healing asphalt" which can mend its own cracks.

Self-healing potholes are touted as a solution to Britain's increasingly potty roads.

Problem is, the road needs to be paved with the new self-healing asphalt. To replace all the potholed roads with the new asphalt will take approximately 5 decades and cost billions.

It would be easier to replace all roads with tramlines and ditch cars altogether.