Am I correct to assume that since this event is associated with team miata that open top cars (S2000) are cool with factory roll bars?
***BTW . . . T.E.A.M. Racing and Team Miata are two very different entities. We are friends, but in no way associated with one another. So no, open top cars are not legal unless they have OEM structural rollover protection or an aftermarket rollbar. Please send pics if you are worried that your car might not be do-able. Most cars actually are.
BW