Updated

Austin Dillon became the youngest champion in Miami Speedway.

Dillon, the 21-year old grandson of NASCAR team owner Richard Childress, finished the season just six points ahead of Johnny Sauter, who won the race. Dillon also became the first driver to win the rookie-of-the-year title and the series championship in consecutive seasons.

Just before the caution flag waved for rain, Denny Hamlin was attempting to pass Sauter for the lead, but Hamlin slightly scraped the wall and could not make the move.

As the rain intensified, NASCAR officials halted the race with 15 laps remaining. Officials then called it minutes later.

Hamlin finished second, followed by Kevin Harvick, Nelson Piquet Jr. and Dillon's Richard Childress Racing teammate Joey Coulter, who clinched top rookie honors in the series this year.

James Buescher finished 12th and ended the season 29 points behind Dillon.