When I was in high school ('71-'73) I had a 1968 Ford Custom Police Interceptor. It had belonged to the Village of New Boston (Ohio) and I won it in an auction in 1972, I think.
The first thing I did with it was pull the interior and hose it down. Too many drunks had been in the back seat over the years. Pee- Shew!!!!
Man, was it cavernous. It fit 6 passengers, 2 beer coolers and there was still room to dance!