This is an unofficial transcription of Sections 12, 13, 14, 17, 18, and Appendices A, G, and H of the 2002 SCCA National Solo Rules. (Copyright Sports Car Club of America 2002; all rights reserved;) These are believed to be correct, but any questions should be referred to the official rules as published by the SCCA. Order your own copy here.
The following definitions shall apply to these Rules regardless of any other definitions or interpretations.
A self-propelled land vehicle, running on at least four wheels, not in a line, which must be in contact with the ground when at rest.
A car capable of transporting four or more average size adults in a normal seating position.
A group of cars of a given make which have virtually identical bodies and chassis but are readily distinguished from other models of the same make by virtue of a major difference in body appearance and/or chassis design. The names by which the manufacturer designates these groups have no bearing on this definition even though two groups may be designated identically.
An item of standard or optional equipment that could have been ordered with the car, installed on the factory production line, and delivered through a dealer in the United States. Dealer-installed options or deletions, except as required by factory directives, no matter how common or what their origin, are not included in this definition. This definition does not allow the updating or backdating of parts.
The distance between the centerlines of the wheels as competed without driver, measured as follows: From centerline to centerline of wheels. Alternatively, it may be measured from the inside of one wheel at the hub centerline height to the outside of the other wheel, then conversely from the outside of the first wheel at hub centerline to the inside of the second wheel. The two dimensions obtained are to be added together and divided by two to obtain the average. Measurements to be taken at both front and rear of the wheels and averaged to compensate for toe in/out. Wheel rim width shall be measured at the base of the bead seat.
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...Jerry Mouton || firstname.lastname@example.org || Last Modified 4/23/2002