It became NASCAR's No. 1 series, ... The company offered cash prizes as contingency money in a few races and promised to deliver a new Nash to the 1950 NASCAR Grand National champion.

The NASCAR Cup Series is the a highly anticipated race which takes place late in the year. ... Then, the name was changed in 1950 to the Grand National Series which remained the same until 1970.

The history of NASCAR's secondary series stretches back to its origins as the NASCAR Sportsman Division in 1950. Over time, the series transformed into what was known as the Busch Grand National ...