Prowl car and Patrol wagon

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

Patrol wagon and prowl car are semantically related in police car topic. In some cases you can use "Patrol wagon" instead a noun phrase "Prowl car".

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

Prowl car and patrol wagon are semantically related in police car topic. You can use "Prowl car" instead a noun phrase "Patrol wagon", if it concerns topics such as motor vehicle used by law enforcement.