Regardless, SVX has the answer.
In 1969, Crysler Corp. released a car that defied the NASCAR rulebook, and became an icon, replacing the company's failed attempt to compete with Ford Motor Company's aero-models, the Mercury Cyclone Spoiler (run primarily by the Wood Brothers) and the Ford Torino Talladega. The failed car was the Dodge Charger 500, and it was replaced by the Dodge Charger Daytona. Dodge, however, was not the only Chrysler brand active in NASCAR. Plymouth was also active, but was waning in it's popularity, ultimately resulting in Petty Enterprises, Plymouth's flagbearers, demanding either a move to Dodge (supposedly a better car & engine) or they would leave. They left...in 1969. Why? Chysler execs wanted to keep The King in a Plymouth. So, for 1970, they got the to make a sister car to the Daytona. It brought back Petty, it was popular , it was the 1970 ONLY Plymouth Roadrunner Superbird.
As for stats, between the Daytona and the Superbird, they hold 25-30 wins and one championship that was NOT won by a well known driver, but by Bobby Isaac...in 1970...in a Daytona.
History lesson over. SVX has the forum.