This is a list of classes exclusive to SFR that are not nationally recognized.
OSP – Open Street Prepared
- The vehicle must have originally been produced for and registered for street use. A license plate on the car and a registration document showing the plate belonging to the vehicle will be accepted as proof of original registration for the street. A current registration sticker need not be evident on the plate as the vehicle registration does not need to be current.
- The vehicles must compete on D.O.T. (Department of Transportation) -approved tires.
- The index is the current SSM index + 0.002.
BSPV – B Street Prepared Vintage
- BSPV is a class for BSP Vintage Chevrolet Corvettes from 1963 to 1982. Class entrants must meet current SCCA Solo rules for B Street Prepared.
- The vehicles must compete on one specific brand of tires made specially for this class.
- The index is the current BSP index + 0.003.
BP – B Prepared
- Rules for eligibility of cars running in this class are those contained in the 2006 National Solo Rule book.