A police patrol car used by police for patrolling or responding to incidents; typically equipped with flashing lights and a siren.
夜道でパトカーがサイレンを鳴らして走っていった。
A patrol car drove by with its siren blaring on the night road.
公園で子どもたちが遊んでいると、パトカーが巡回に来た。
When the children were playing in the park, a patrol car came around to do a round.
交通事故の通報を受けて、複数のパトカーが現場に向かった。
After receiving a report of a traffic accident, several patrol cars headed to the scene.