Drivers also receive a 10-point bonus for each race victory they had during the first 26 races.
It was the fifth race victory for the factory team.
Costa won the title at his first attempt, scoring seven race victories along the way.
However, the winning team is not given any extra credit for the race victory.
To date, this was the last race victory for an Argentine driver.
The race victory was the Wood Brothers first win since the 2001 season.
Should the chase end in a tie, the driver with more race victories will win.
All eleven of his race victories happened during those three seasons.
She took a number of impressive race victories throughout the season and won the series overall in February 2009.
Any race victory can be worth up to 185 points.