NASCAR Winston Cup - 1994:
Drivers collect points based on finishing position, the driver that has the most points at the end of the season wins the championship.
NASCAR Nextel Cup - 2004:
Drivers collect points over the first 26 races of the season. The top 10 drivers in points after the first 26 races qualify for a 10 race "Chase" in which points are bumped up to 5,000 plus 5 points for every position above 11th that the driver finished after the first 26 races. The Chase driver that has the most points at the end of the season wins the championship.
NASCAR Sprint Cup - 2014:
Drivers collect points based on finishing position, but must win a race to qualify for the Chase. But they have to attempt to qualify for every race and be at least 30th in points to qualify for the Chase. However, a driver can still qualify for the Chase if less than 16 drivers win in the first 26 races based on their points position. Conversely, if more than 16 drivers win in the first 26 races, the lowest winner in points is out. The 16 drivers in the Chase then have their points reset and compete in four elimination rounds. After the first three races of the Chase, four drivers are eliminated and the points are reset again. Also, any driver that wins one of the three races in the elimination round automatically move on to the next round. The drivers who have been eliminated can still advance their points position, as their points will go back to 2,000 plus points attained during the Chase. After the three elimination rounds, the four remaining drivers compete for the Championship at Homestead, with the highest finishing of the four drivers winning the championship.
I may have to attend a two-week seminar to learn the 2024 rules.