I wanna do my first track day at Thompson with them, I done many bike track days in the area I think this is the smoothest track to learn the car. But I do have a little problem with my s2000 is turbo and I'm sure if it will pass the convertible rule. The rules are little confusing.

 

Can't speak to Track Night specifically, but the S2000 is generally considered to have factory roll over protection (front windshield). You should be OK, but run with your top up and avoid any hassles. To the extent necessary, lay back your seat.