black car

noun5

1. •
   a taxi that cannot be hailed from the street, but is called by placing a phone-in request; a call cab, a radio taxi

   • To insure prompt service, large financial and legal concerns maintain accounts with as many as 10 black-car companies. — 1987
2. •
   A limousine
3. •
   (US) A large government SUV with blacked-out windows
4. •
   a black cab, a taxi that is only hailed from the street
5. •
   A hearse