My 6 year old has watched the 50 year history of NHRA about 1000 times. Any other good DVDs out there about history of drag racing or year end recaps or anything like that?

I haven’t tried to find this myself, but sounds like what you’re looking for:

https://www.nhra.com/news/2021...-including-tubi-roku

As an aside, don't let him miss the Bob Glidden interviews/coverage on YouTube.

competition plus has a zillion races on youtube like mentioned above. More interesting to watch than live racing today.

Also Roku has their Roku live feature now which has an nhra channel that shows old races and all kinds of cool stuff 24/7

Heart like a wheel is a Shirley Muldowney DVD about her coming into the sport.

Snake and Mongoose is another DVD about those two and their rival and history with hot wheels.