New Fanatics partnership leads to 20 percent increase in merchandise sales.

For the first time this season NASCAR created a centralized location for merchandise at each track in partnership with licensee Fanatics that saw driver merchandise sales increase 20 percent.

The Fanatics Trackside Superstore launched in July and also led an average transaction increase of 75 percent.

The boost in retail sales follows a blockbuster season for the sport, which had its most-watched finale since 2005, peaking at 12.4 million average viewers.

NASCAR also announced the top five best-selling drivers for the 2015 season: Dale Earnhardt Jr. topped the list at No. 1, followed by Jeff Gordon, Kevin Harvick, Jimmie Johnson and newly crowned champion Kyle Busch at No. 5.

“We had unprecedented collaboration with stakeholders this season and saw many positive results in our effort to innovate, better serve our fans and grow the sport,” says Brian France, chairman and chief executive officer, NASCAR. “We will continue to work tirelessly this offseason to further improve the fan experience at every turn and look forward to kicking off next season at the Daytona 500 where fans will experience the unveiling of the world’s first motorsports stadium.”