I enjoy watching NASCAR especially with my 4 year old son who knows
all the drivers, by sight, car and sponsor. And their Nationwide cars...and some of the trucks. Sometimes, it's a bit boring, so I can do other things and catch the end of the race.
They have been very successful at building an accessible sport that you can visit every week without knowing all the behind the scenes drama. The 9 hours of preshow can fill you in if need be.
Positive camber is interesting to see
The new COT actually looks like it's going around "loose"/slightly sideways since they have found that's how to get max downforce.
Road racing is hard to follow in person (anyone ever go to Summit to watch a race?) The NASCAR drivers typically hate the road courses. That's always funny to see them complaining about it.