>Probably Production... as long as the car is not seam
>welded... otherwise probably G2
As a CARS-legal production car, it would run in Production - SCCA rules 10.2.C.28. You can download a PDF of the SCCA rules to check any specific extra requirements. You might need to upgrade the First Aid kit, carry a spill kit, etc... You will need to run the SCCA identification package.