The number of drivers per race is usually between 20 and 30 cars.

Points are awarded to the top 16 finishers per race.

The system needs to change, drivers should be able to use it a certain number of time per race.

The other pickups can only be collected once per race.

They wear fast so expect two or three stops per race.

Sure, they break down a lot, but they're really excellent when it comes to limiting the voters to one candidate per race.

Teams may only yield any other team once per race.

Estimates range from around 500,000 to one million per race.

"They get paid $2,000-$3,000 per race, sometimes two times a week."

The 2008 season attracted a global audience of 600 million people per race.