[FINESPLINE]

442, I understand exactly what you are saying but you are breaking it down to a sportsman racer thought process. The people in the stands see 2 cars , two different colors and root for whatever body style appeals to them.
You are looking at the technical side of race, that these people will never understand unless they really become hooked on sportsman racing. All they want is the car that appeals to them to win. Simplistic and easy to understand.These people are a long way off from indexes , ahfs, cic, breakouts. It clouds the picture when it casts doubt to what you observe.