the advance auto parts clash is a monster energy nascar cup series exhibition race held annually at daytona international speedway in february the weekend before the daytona 500, it began as the busch clash and was a 50-mile "all out sprint", in its current format, it is made up of two segments, starting with the 25-lap segment, which culminates with the final 50-lap segment, the race, like the monster energy nascar all star race in may, carries no points for the winner but rather a large purse, circumstances which are supposed to encourage an all-out driving style not seen in regular season races, where one series mistake can largely ruin a season. however, due to the smaller fields, huge crashes in the daytona 500 are uncommon.