Why 43 cars in Sprint, Nationwide and 36 trucks in Camping World?

I know at one time Nascar would have more than 50 cars in a race.|||In the early days of NASCAR, there were some tracks where there were no limits to the size of the field. At Darlington, for instance, there were as many as 75 cars in the field and at Daytona, there have been as many as 50. Over the years, the size of the field began to evolve. It was 40 for the large tracks and 32 for the small tracks in the late 1970s and early 1980s. Then it became 42 for the large tracks and 36 for the small/short tracks. Then the champion鈥檚 provisional moved it up to 43 and NASCAR made the 43-car starting field universal at all tracks.





As far as the Camping World Truck Series, its been the 'budget' Series so 36 instead of 43 is understandable.|||Not enough room for more than 43 cars on the smaller tracks. The track itself would be too crowded and there isn't enough pit stalls.





There is less in the trucks because less people show up to run the races. Instead of running some races with 43 and some with less they just lowered it to 36 to keep the starting fields consistent. It costs almost as much to build a truck or nationwide car as it does for the cup cars. Since the prize money is so much lower teams will run the higher series if at all possible making it more likely they don't lose money.