If your boss goes to the auction why cant he look for something for you? When I worked for somebody with a dealer’s license I went to the auction and picked out a Blazer I wanted and had him bid on it for me and he sold it to me for $100 over cost (just to show profit in records).
Resale is shitty on those so you can usually get a nice one cheap. Since 99% of the people that buy them are 60+ theyre usually not beat.
Take a look at what most cop cars and taxi’s are and see how many miles are on them- these cars do run quite a long time. Theyve made these things forever too- the main part of them dates back to '92 with just a face lift in '98 and other minor changes.
My parents had a Grand Marquis as a rental car a few years ago when my mom’s car got hit and I drove it and it was like a living room on wheels. Really comfortable to drive and you almost forget how big it is. 5 adults fit in it comfortably too.