"James
Do away with driver training.
Each driver has their own unique attributes that grow and decrease over the course of the season, they are effected by age, performances and results.
had to use jack like :P
That's actually pretty creepy.
In regards to wrecks/crashes:
There are several differences. Losing contact with the track and having your car slide off into a sand trap onto to narely miss the safety barrier allowing you to continue on with the race, or, losing contact with the track and having no room to land into a sand trap, instead you slam into a safety barrier at 200kmh killing the driver inside and destroying the race car.
The first scenario happens WAY more than the second scenario, thus, we must keep the chances of crashes etc realistic.