I apologize if the topic has been covered however search is returning a 404.
I've been reviewing the roll over protection rules and had a question related to 9.4.B.2.d:
"Open cars must have 2 braces extending forward from the main hoop and attaching to the front hoop, not more than 6 inches below the top of the front and main hoop. It is recommended that the front and rear braces attach to the main hoop as close as possible to each other."
Does this describe the pictured bracing?
I ask because most Miata/MX-5 designs don't have anything similar to what 9.4.B.2.d seems to describe.