I have a 1994 Miata that's currently 100% national-level legal in STR. I know it's not exactly going to be winning nationals regardless of who is behind the wheel, but I like to stick to the ruleset and I have it. So that's where I'm at. :p
However, I'm trying to prepare it for some dual-use stuff like track days/HPDEs as well as solo. And there's always that off chance that it'll turn into a real racecar some day... who knows. Plus I'd feel safer with a bar or cage in the car just on the highway, especially with how people around here drive...
Anyway, I've read through the rollcage/rollbar rules a couple times now and am a little confused. The way it looks to me is that you can either weld or bolt in a rollbar that's got a specified tube thickness and some other critical dimensions, or you can build a rollcage per the CGR.
To me this means that if I have anything but a bar as specified in the solo rulebook, I have to have a FULL CGR cage, which includes door bars and the like. However, STR rules don't exactly have an allowance for removing half of the door. So it's a bit of a problem. I'd also like to drive the car to work occasionally since it's still street legal, and is quite fun on the street with a few cool corners on the way to and from work.
Anyway, is there an allowance or way to interpret the rules that allows a partial CGR cage without the door bars? Or am I stuck with the black/white option of one or the other?