[flipper35]

Jamo, here is an excerpt form an email back from Driving Concepts performance driveing school about the roll cage thing.

"I am also forwarding a copy of this email to one of our friends, Tom Bell, who works a lot with the Central California BMW Group….Tom was instrumental in developing a ‘removable roll cage’ for his Z3 and has shared this information with a lot of our students…it might be something that would work with your Cobra, not sure but worth a try"

I haven't received a reply from Tom yet (this came to me on Fri) but it sounds worth a try. Am assuming it's legal for NASA since it was a NASA license I was inquiring about. I talked to a fabricator on Friday night and he thinks a four point cage is quite doable.