In the future even your electric car’s tires will help power the vehicle, at least that’s what Goodyear wants. The company unveiled its BH03 concept tire at the Geneva International Auto Show. It works by converting the heat it builds up while driving on the road through friction that builds up while in motion. While it’s parked though, a thermo-piezoelectic layer can also help collect heat. The small patches on the tire’s surface can draw heat directly from the sun, so if you’re parked outside on a hot summer’s day, this can also generate power.
Since this is still a concept though, details are a bit scarce. Plus, there is no mention yet how the electricity will make it way to the engine to power the car.