If they have, I apologize
I like the way the roof on this render isn't all flow-y and fastback-y like on the real coupe. Regular Miata has a good sillouhete, don't fix it if it ain't broke.
keepin those fingers crossed; I am actively feeling the pain of being prohibited from track driving because of no rollover protection
edit: I'm not sure whether the pop-up roll hoops in the NC and ND leagalize you