There were no cautions in the 1959 Daytona 500.
Dale Jr. led four laps in the 2010 Daytona 500.
In the 2011 Daytona 500, Dale Jr. led nine laps.
There were 9 cautions for 40 laps in the 2010 Daytona 500.
There were 10 cautions for 42 laps in the 2012 Daytona 500.
Dale Earnhardt Sr. led 107 laps in the 1998 Daytona 500.
He finished 199 of the 200 laps.
In 2010, Dale Jr. led a total of four laps in two Daytona races. He led all four of his laps in the Daytona 500.
The race is 500 miles which is 200 laps (the track is 2.5 miles) and as far as time, it usually runs about 4 hours (give or take) depending on the amount and severity of cautions.
The Daytona 500s of 1959, 1961, and 1962 saw not a single caution.
Kevin Harvick led the most laps with 41. Followed by Clint Bowyer with 37.
This track is a 2.5 mile track. There was 250 laps to the race in any year. How can 250 laps times 2.5 mi/lap = 500 miles The answer should be 200 laps doing your calculations of 250x 2.5 mi /lap would gives a total distance of 625 miles. You would have to change the name of the race to the daytona 625