The 1955 NASCAR Grand National season began on November 7, 1954, and ended on October 30, 1955. Even though the season was resolved in the course of two different years, all NASCAR personnel were allowed to have their traditional two-month silly season that traditionally comes between mid-November and mid-February. Tim Flock won the 1955 championship by a margin of 1508 over top of Buck Baker. This season was unusual because of its 11-month season (as opposed to the current 10-month season format). As the ninth season of the series now known as the Cup Series, most of the drivers involved were still the first-generation race car drivers. They did not have any ties to the stock car racing world through their parents or grandparents although some of them served in World War II prior to their NASCAR careers. However, the generation that would gain notoriety and fame through nepotism (i.e., their father or older brother having a ride before them) would emerge about ten years later. The average horsepower of a stock car competing the 1955 NASCAR Grand National season would be 230 horsepower (approximately 620 less horsepower than the vehicles used in the 2009 NASCAR Sprint Cup season).
The first race of the season was held at Tri-City Speedway in High Point, North Carolina, while the last race of the season was held at Orange Speedway in Hillsboro, North Carolina. During this time, it was customary for the majority of the tracks to be dirt tracks as 40 out of the 45 races were raced in that manner. Dirt track racing helped produce the lower speeds that kept the action safe decades prior to the Car of Tomorrow. The move to paved tracks in later decades would produce dangerous speeds that would cause research to move towards making cars safer to drive as opposed to making cars faster. There would be approximately 20 more years of dirt racing before paved oval racing would finally become the expected norm for NASCAR racing.