Indeed, when everyone else had begun to shrink their products (mention to GM B bodies as direct full size equivalent), Ford kept producing land yatch almost into the 1980’s. Basically they were late for the downsize party, just take a look at the T-bird.
GM on the other side did a real good job with the resized Impala/Caprice, either aesthetic and mechanically.
And still on the downsize subject, I came across this picture which is not really related to police stuff but found it worth to be posted either way. New Chevrolet meets Old Cadillac circa 1977 in Medford, Mass.