Future tyres to change colour when it's time to replace

Tyre wear indication technology hasn't come particularly far in the past thirty years, as most of us are still reduced to sticking a 20p piece into the tread to see if it's time we paid Kwik-Fit a visit.

But award-winning designers Gao Fenglin and Zhou Buyi have been busy working on a high-tech solution to the age-old problem of spotting worn out rubber.