At Hagerty, we are able to provide highly accurate values in the classic car world thanks to two major factors: our data and our expertise.
#4 cars are daily drivers, with flaws visible to the naked eye. The chrome might have pitting or scratches, the windshield might be chipped.
#3 cars could possess some, but not all of the issues of a #4 car, but they will be balanced by other factors such as a fresh paint job or a new, correct interior.
#2 cars could win a local or regional show. They can be former #1 cars that have been driven or have aged. Seasoned observers will have to look closely for flaws.
#1 vehicles are the best in the world. The visual image is of the best car, unmodified, in the right colours, driving onto the lawn at the finest concours.