Other forms: motorcades
A motorcade is a line of cars traveling together, usually slowly and ceremonially. If the President comes to town, you are bound to see a motorcade.
When the President travels to give a speech, part of the trip usually occurs in a motorcade. In the case of a powerful person like a world leader, a motorcade is mainly made up of Secret Service agents providing security. A funeral motorcade is comprised of the cars of mourners, and sometimes a hearse carrying the deceased person's body. Motorcade borrowed -cade from cavalcade, a procession on horseback, turning it into a suffix in the early 1900s.