National Automobile Dealers Association

The National Automobile Dealers Association was founded in 1917 by a group of dealers determined to lower the luxury tax on automobiles from 5% to 3% by lobbying Congress in Washington, DC. After the success in Washington, the group decided to form a permanent union and represent the nation's 15,000 automobile dealers. Wikipedia*

On the C-SPAN Networks:
National Automobile Dealers Association has hosted 2 events in the C-SPAN Video Library; the first program was a 1988 Forum. The year with the highest average number of views per video was 2015 with an average of 1,943 views per video.