How the wheels have sparks
Not the tire is the chassis or the tail diffuser hit the road caused by, you can refer to the 2008 Singapore station
This is caused by the racing chassis and the tail diffuser hit the road, the chassis and tail diffuser, mainly composed of carbon fiber and aluminum. So when the car at high speed due to the uneven surface of the track led to racing bumps, so that the chassis of the car and the tail diffuser hit the road caused by the spark. This phenomenon before the 80s, the ruins of the early 90s most common, then the track is not smooth, and the car's aerodynamics is not so now the first.
