Complete the following sentence: Daytona International Speedway has seen 40 on-track fatalities since its opening in 1959: 23 car drivers, twelve motorcyclists, three go-kart drivers, one powerboat racer, and one track worker. The most notable death may have been that of Dale Earnhardt, who was killed on the last lap of the
Daytona 500 on February 18, 2001.<unk>