How2 Sim collisions and impacts better.

I setup accel,decel and lateral to simulate impacts with other cars and trees etc...but to get them strong enough to hit me a bit,I also get hit just by braking hard or cornering hard.

I just want the impacts and collisions.If I set it so braking dosnt trigger it,then impacts are really weak.

Is the a way to tell the accel,decel and lateral to avoid triggers like braking or cornering?

thank you

I did set up clones of each effect with a slight delay which helped but its not even close to what it could be.