I am a member of AACA, and the 400 point system works very well. In judging a car, based on the official judging guidelines, the points are deducted, based on condition. There are max point deductions for different items, in the 4 areas judged, exterior, interior, chassis, engine,, max deductions for non-authentic paint color 40 pts, soft top if material is incorrect, 10 pts, etc. etc. I think that as a classic car the AACA is looking at examples of what a car would look like when coming from factory. Also you must drive your car to on to the show field. I think the MB concours is also looking at this in their 100 point system of judging. I do like the two classes of MBNA, street and show.
Now with that said, I do think that this should push value . If you have a 100 point Concurs, or a 400 point Senior or Grand Nation award winning car, values should be higher.
Bob