Why do cars even need a B-pillar?

Question

I have seen videos of cars that do not have a B-pillar. I think it looks much better because it reduces the separation between each row. It’s hard for me to understand that a roof is heavy enough that it needs a support in the middle.

In: 0

Answer 1

The roof isn’t heavy. It needs to be strong because it acts as a brace for the rest of the frame. You need something either above or below to prevent vertical flexing, and convertibles usually put an X-brace below.