Actually it was a Custom Cruiser, just like this one.
https://www.hemmings.com/blog/2011/06/27/hemmings-find-of-the-day-1973-oldsmobile-custom-cruiser/
It was a beast. 454 engine, built like a fire truck.
I once burned rubber across and entire parking lot. 1/4 tank of gas just to get to school.
And a really good, albeit ineffective burglary vehicle.