Nice video. My dad was one of those people that thought the invasion of rear engine cars in Indy was going to ruin racing forever. He took me to a race when I was a kid in ~1965. His favorite driver was Jim Hurtibise who spent years racing an old front engined Offy, until he couldn't qualify (to slow). Hurtibise sprint car driver that was a local fan favorite.
I think he kept trying until the early 70's. My dad told me that Hurtibise said "I'm going to win Indy or die trying".