The 1973 National 500 was a NASCAR Winston Cup Series racing event that took place on October 7, 1973, at Charlotte Motor Speedway in Concord, North Carolina.

Glotsbach was forced to re-qualify after changes were made to the car to make it legal, and qualified 34th.

[3][2] However, the race took three hours and twenty-six minutes to finish with Cale Yarborough defeating Richard Petty by a time of 1.4 seconds.

[6] David Pearson won the official pole position with a speed of 158.315 miles per hour (254.783 km/h) - which was equivalent to 34.109 seconds.

Bobby Allison filed a complaint with Bill France, Jr. which resulted in a 6-hour meeting and "satisfactory restitution".