My first assigned patrol car was a 1965 Chevrolet Biscayne. Next was a 1967 Ford Falcon (6-cylinder 3-speed). Chrysler products became the norm from 1970 until 1975. In 1976 we got a bunch of Chevrolet Nova sedans with 350 V8 that really scooted around, but it was difficult to wrestle a big guy into the back seat when necessary.
I don't recall any new vehicles in the latter 1970's, which were pretty tough times economically.
Went over to a state job in 1982, they gave me a brand new Plymouth Reliant (K-Car), plain brown wrapper, plain hub caps, two radio antennas so everyone knew it was an unmarked unit. First time I went onto the Southern Ute Reservation, trying to find a witness to get a statement, three truckloads of young guys with deer rifles objected strongly to my blonde haired blue eyed sport coat & necktie presence on the REZ and made sure I left promptly. The tribal police seemed more amused than anything. No bullet holes, no harm, no foul, stupid white man learned a lesson that day (next time don't waste a trip, place a call to the tribal cops and note that in the investigation report, no reply means no further action).
In 1985 we got some new Ford LTD-II sedans. Ran pretty good, but if you ran the AC in city traffic the engine would overheat and shut down, stranding you for an hour or two until it cooled off enough to run again.
Last automobile purchase I oversaw was 1992 Ford Taurus sedans. Front wheel drive, pretty stout little V6 and automatic. Got around pretty good in winter conditions. I was chief in a small town so there was little need to go real fast, and I tried to stretch the gasoline budget as far as I could.
Once again I have wondered off on memory lane, further and further away from the original post. Sorry about that.