First car I ever actually paid money for was ex-police (Thiensville WI), but it was an unmarked '88 Crown Vic so no worries about emblems or paint job. It was subtle silver, and the only giveaways that it wasn't a grandpa car were the spotlight and lack of a vinyl roof.
That, and the fact that it could keep up with Corvettes pretty well. Oh, and the stupid punk beating the snot out of it...