43
43 drivers are in one Nascar Sprint Cup Series race.
There are a maximum of 40 drivers who can compete in a Nationwide Series race.
In a Nascar Cup and Nationwide Series race there are 43 drivers. In a Nascar Truck Series race there are 36 starting drivers.
Depends on how many cars the team has, but one driver per team.
Unlimited can qualify, but only 43 can race.
Only one driver can take pole for a particular Formula One race
43
Because just starting the race pays, I think, 100K.
There are a total of 11 teams in the 2013 formula one season. Each team can field 2 race cars per race which means 2 drivers per race. So, a bare minimum of 22 drivers will drive in the 2013 formula one season. If any driver is injured or replaced mid-season then, the number might be even more. As of now the list of 2 drivers per team is published and can be found in Wikipedia or on the internet.
70 percent
In the 2010 Daytona 500, a total of 43 drivers started the race. There were 33 drivers still running at the end.
This is the amount of drivers in each series who started at least one race during the 2013 NASCAR season:Sprint Cup: 78Nationwide: 128Camping World Truck: 117