France "gendarmerie" uses Imprezas for overspeed interceptions:
Image:SubaruImprezaGendarmerie 1.JPG - Wikimedia Commons
Image:SubaruImprezaGendarmerie.JPG - Wikimedia Commons
I saw them a number of times already, either patrolling or "sniping" with a laser radar gun (which looks like some FAMAS gun somehow) through the window.