How do I make the pessima as tough/safe as the etk800?

I wanted to make the pessima have less cab intrusion at high-speed collisions like 40mph. And I got the front end tough enough to not break the main engine everytime it crashed at 20mph but I couldn't change it any further. But when I tried the same thing on the ETK800, I could crash it at 80mph and have no cab intrusion, So how do I make the pessima do the same? I've tried using the NBE to do it but it doesn't change anything much. I know how to use the NBE pretty well and I've changed the deform and strength values before but that hasn't changed a lot. When i made the beamdeform 0 for the hood it still bent crumpled up, so can I make it not crumple as much? The values in beams haven't changed that much. Is there a way that i can make it not deform/bend at all?

My main goal is to just make the cars crash differently for fun, but i'm stumped on how to do it.
I saw an invincible 200bx, and that's basically what I'm doing but not the entire car. Thanks!!

 

You might have to add more beams, but I'm not sure.
Edit: Beamspring is the value you want to edit, it is how much the beam will change in length when force is applied.