43 drivers are in one Nascar Sprint Cup Series race.
They currently have a set maximum number of 43 at every race.
Yes, there have been several NASCAR races in recent years without 43 drivers. The Kentucky Speedway racetrack does not race 43 cars.
Yes. Richard Petty first drove the #43 car in 1959 and it was his primary number throughout his career.
The Nascar Cup Series fields 43 drivers at every race they go to on the schedule.
Because NASCAR mandates the number of cars in each division...just like everything else. Mostly because the way tracks were built, namely pit roads and track sizes; along with the experience level of each division. 43 is the top number, that is the "Sprint Cup" division, the top level of experience.
43
3, 43, and 21.
at the begining of the race, 43.
In a Nascar Cup and Nationwide Series race there are 43 drivers. In a Nascar Truck Series race there are 36 starting drivers.
All 43 positions get paid.
If you are a past Nascar champion you can get into the race... even if you are the 44th fastest car. They would just tell the 43 fastest to go home.