Banter
Slo
Steve
Banter Prix thats a really good idea. 
This is how it could work to bring more realism and excitement to the game.
You promote a new driver to your team. His experience is 1 and his talent is 20. He is fast, but if you push him to the point where his tyres go slightly into the red then there is a chance he could crash (say 1 in 20 laps while in the red). 
Over time his experience goes up. When he gets to experience 20 it means even if his tyres overheat there is still only a 1 in 100 chance that he will crash. If you're a good manager then you don't let his tyres overheat and he never crashes. 
Now you introduce randomness? After saying it shouldnt be random?
This time there is skill to it. Not letting your tyres overheat and training your drivers the right way. Then after that there is a very little chance of crashing. Do you even realise there is already small amounts of randomness already in the game that is just like this one, In terms of chance anyways.
Every experienced Manager knows that....
The amount of randomness is more than enough,
That was often an argument against crashes and the safety car and so on, that there is already enough randomness.
Do you know that the game has sometimes bugs?
There you have your crashes:) when you lost a Championship because of that you really don't want to have crashes...