Complex sentence: The 2007 Daytona 500, the 49th running of the event, was the first race of the 2007 NASCAR NEXTEL Cup Series season, taking place on February 18,2007, at Daytona International Speedway in Daytona Beach, Florida.
Split into simpler sentences: The 2007 Daytona 500, the 49th running of the event, was the first race of the 2007 NASCAR NEXTEL Cup Series season. It was held on February 18,2007 at Daytona International Speedway in Daytona Beach, Florida.