
If a race is declared wet and is started behind the safety car, drivers are obliged to run Pirelli's blue-walled extreme wet tyres.
However, the anomaly is that once conditions become raceable, the wet tyre is regarded as being of little use.

If a race is declared wet and is started behind the safety car, drivers are obliged to run Pirelli's blue-walled extreme wet tyres.
However, the anomaly is that once conditions become raceable, the wet tyre is regarded as being of little use.