So I just got back from a track day at NHIS with the SCDA. I drove a racing Miata (full cage, 5-point seat belts, etc see below - talking about claustrophobic...) There were some pretty fancy cars there, a Ferrari, a Mercedes AMG, bunch of Lotuses (Loti?), Corvettes, same Daytona experiment with mid-mount rotary engine etc. But there were also two MINIs and both did very well.
This is what I think you should bring: A chair, sunscreen, a hat and a plastic storage box for your E-ZPass, camera, cell phone, hat and sunscreen, glasses etc.
Now the bad news: at the end of the day, you will probably need new brake pads and tires...
