An S2000 for C Street could also be an option. I don’t think they will be the car for the class but it should be close. Down side, 10year old S2000’s are almost as much as a new Miata. Upside they should hold their value or even go up from here.
Going for a National Championship gotta go with the 2019 ND. Having fun at the local level any ND or S2000. Having said that I would still have to have the 2019 ND for local events. I am not that fast so I need all the help I can get.