The 1978 Old Dominion 500 was a NASCAR Winston Cup Series race that took place on September 24, 1978, at Martinsville Speedway in Martinsville, Virginia. This race was the 28th to be held as a part of what is now known as the First Data 500. By 1980, NASCAR had completely stopped tracking the year model of all the vehicles and most teams did not take stock cars to the track under their own power anymore.