Dennis Steven Kinser, nicknamed "The King", is a former professional sprint car racing driver. He has won 20 championships in the World of Outlaws (WoO) series. Kinser left the World of Outlaws in 2006 to compete with the National Sprint Tour series, but returned to the World of Outlaws for the 2007 season. ESPN named him 25th on their top drivers of all-time in 2008. He was inducted into the Motorsports Hall of Fame of America in 2017.

The Australian Speedcar Grand Prix is an annual dirt track racing meeting held in Australia for Speedcars. The meeting has traditionally been held in Sydney, but on occasions has been held on tracks in Victoria and in 2000 the race was held at Perth's Claremont Speedway, not long before the 1/3-mile Showground track closed.