Wear and driver form
During the races, the cars parts are being worn out, their engine and chassis distort little by little.
This wear regulates lap after lap, although a part of random is taken in account. However, for similar races, you will notice similar wear.
The attitude of the driver and his experience will influence the speed of the wear.
On top of it, as explained in the previous paragraph, the choice of tyres has an impact on the calculation of the parts wear rate.
Bad tyre choice will always increase the car wear.
Drivers improve during the races.
As mentioned before, depending on the type of race, the driver will gain more or less experience.
But, he will roughly get the same average experience lap after lap.
Of course, an older driver learns slower.
Form loss is proportional to the number of laps, the driver's attitude and his age.
An older driver gets tired faster.
On top of it, if the driver is struggling with his car because of a bad tyre choice, his tiredness will be more important.
