Quite a few of us have already booked into this trackday in our MX5s: https://www.mazdaontrack.co.uk/croft-circuit---friday-7th-may-21-707-p.asp
I was told it was 1/3 booked yesterday (4th March).
This isn’t anything official or an exclusive MX5 event.
It would be good to see more MX5s there