I had no plan of not finishing what I had started on last night's show. This graphic should help explain the series breakdown. Out of these series, the one's that were the "original" series for their type of car are Grand National/Cup (red), Late Model Sportsman/Busch Series (orange), Modified (green), and Grand American (black).
Series that share a color with these are series that came later and used the same rules. Example: Convertible and Short Track divisions used Grand National cars.
Thus, the Winston West Series (now K&N Pro Series West) used Grand National cars until 2003. Likewise, the Busch North Series (now K&N Pro Series East) used Busch Series cars until 2003. In 2003, the two series were combined into a single rules package which are the two blue bars you see on the right.
And the black and red hatching for the Grand National East Series is because that series accepted both the Grand American and the Grand National cars.
I was not going to drive myself crazy with the other series, and I should have extended it back to 1948 if I genuinely wanted modifieds on there.
updated by @alex-fl-racing-fan: 12/06/18 06:15:08PM
