Concept ##rm tyre was unveiled at the Geneva International Motor show . It is coated with thermo - piezoelectric materials that convert heat into energy . This is achieved either using sunlight or from friction when the tyre heats . Firm also unveiled a second concept called ' Triple Tube ' This contains tubes that adjust pressure depending on the road conditions . There are no immediate plans to release these concepts . But the tyre - maker said it predicts future cars will use the technology .
Concept BH03 tyre was unveiled at the Geneva International Motor Show . It is fitted with thermo-piezoelectric materials that convert heat into energy . This is charged either using sunlight or from friction when the tyre rolls . Firm also unveiled a second concept called 'Triple Tube ' This contains tubes that adjust pressure depending on the road conditions . There are no immediate plans to release these concepts . But the tyre-maker said it predicts future cars will use the technology .