Editor’s Note: NASCAR is celebrating its 75th anniversary in 2023. What do 27 victories, a record-shattering 75-career triumphs, 5,537 laps led in 41 races, $150,197 in winnings and 10 victories in a row have in common? Beginning with his victory in the Aug. 12 race in Winston-Salem, N.C., the No. Heretofore, Petty held two victories in 10 Grand National races; good numbers, but hardly dominant. Key to the innovations behind the development of race tires was the involvement of Firestone and Goodyear Tire and Rubber companies in the NASCAR Grand National division. The penalized car could race for one event with a spoiler, but would have to conform to specifications before it could be raced again.

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