Here is what I would need:
Convertibles: Convertibles are defined by BMW CCA as cars with retractable tops, whether soft-top or folding hardtop. These are the rules that have been set in place by the Tejas Chapter in accordance with the BMW CCA national standards. Every open topped car must be equipped with roll over protection. Additionally, the car must be equipped with a 5 or 6 point harnesses and arm restraints for driver and passenger. This means you need to install a 5 or 6 point harness and arm restraints for you and the instructor. Finally, the roll bar must clear the occupants' helmets by 2" in a straight line from the top of the roll bar to the top of the windshield. This will be measured before going out on track.
As I have none of this..
I'm probably not heading over.