I searched and found some photos of her and the car was as I thought it would be. The best equipment and a well padded cockpit. It appeared to be a LaJoie seat w/head nets.

I like a safer wall concept, but the way it is used now is to absorb impact from heavier/faster vehicles that do not have an open "cage" type **** pit. We use some scrap pieces from the building of the first safer wall system for a frame jig, and it is anything but soft. It's steel square and it is stout. Even with the foam "shock absorber" system behind it, you will still run the risk of hitting the steel wall with your extremities if you flip into it.

I do like the foam idea, but it isn't always the most user friendly for tracks to use.

I have often thought of some form of high impact padding for the top of the fence and then more of the same about half way down the wall, if it is a very tall fence.
Something like a truck dock uses for the face and a round "dome" bolted to the top of the fence with recessed bolts.

There is a product that was offered by a company called "Kemmler" and it was a high shock absorbing type of material that Kirkey offered for their seats for a while. I think that would be a great material for a soft wall at sprint car type tracks.