This is why race cars have big wings

[Matt D.]

There are some ridiculously large wings on autocross cars that do not have side bracing and they flop around all over, I always wonder why they don't put a diagonal bar across them.

[goodhart]

Originally Posted by Matt D.

There are some ridiculously large wings on autocross cars that do not have side bracing and they flop around all over, I always wonder why they don't put a diagonal bar across them.

Autocross cars also don't travel at 100mph+ very often.

[Kracka]

Originally Posted by goodhart

Autocross cars also don't travel at 100mph+ very often.

Matt is pointing out that the wings still move around quite a bit and could benefit from additional bracing.