Police car and Patrol wagon

Police car noun - A car in which policemen cruise the streets; equipped with radiotelephonic communications to headquarters.

Patrol wagon and police car are semantically related. in motor vehicle used by law enforcement topic. In some cases you can use "Patrol wagon" instead a noun phrase "Police car".

Patrol wagon noun - Van used by police to transport prisoners.

Police car and patrol wagon are semantically related. You can use "Police car" instead a noun phrase "Patrol wagon".