NASCAR overhauls penalty system headed into Daytona 500 (The Associated Press)

NASCAR unveiled a revamped penalty system Thursday that could levy more punishments on race weekends.Scrapping its six-level class, NASCAR moved to a two-level system where penalties assessed during qualifying or inspections at the track will be immediate and not handled later in the week.Potential penalties at the track include loss of practice time, loss of pit selection, an end of field penalty and even the loss of track access.