Mental Strength/Strength Issues

[88deathguy]

I'm currently doing the Indy 500 in B-Spec and my Bob is completely depleted of Strength and Mental Strength. Now, when I observe the other drivers, they go around a corner and their strength bars fill up immediately. How can I do this and how do they do it?

My bob is level 28 going into 29, class 29, and is currently all the way in the light blue part of the meter.

 

[F1]

You need multiple drivers generally! When your driver isn't racing there Strengths go up! I think I did it with 3 bobs!

 

[GraphiteGB]

You need multiple drivers generally! When your driver isn't racing there Strengths go up! I think I did it with 3 bobs!

Yep the AI is using up to 4 drivers. they rotate their driver at every pit stop.
This is why the events have a number of drivers allowed icon on them.
The only endurance race event not to allow 4 B-spec drivers is the Le Mans 24HR which has 3 drivers only...