1972 was a landmark year for the Oldsmobile Cutlass for two very different reasons: it was the last year you could order a standard Cutlass convertible until the body style returned in 1990, and it was the year a Hurst-badged Cutlass became the only Indy 500 pace car ever sponsored by a parts supplier instead of an automaker. Here is the strange chain of events, starting with a wrecked pace car the year before, that made it happen.