Hurst (not Oldsmobile) provided the pace car for the `72 Indy 500, and outfitted some Vista Cruisers with the same equipment as the pace car(s). The wagons were used for doctor cars and press cars.

Hurst supplied the speedway with at least a couple of Hurst/Olds Vista Cruiser station wagons labeled “Medical “ as well as “Press and Photographer”.

https://www.stationwagon.com/gallery/1972_Hurst_Olds_Vista_Cruiser.html

https://wbckfm.com/kalamazoo-mans-restored-indy-500-vista-cruiser-at-grand-rapids-auto-show

https://musclecarandcorvettenationals.blogspot.com/2022/07/keeping-things-interesting-at-mcacn.html