A procession or parade of automobiles, especially when carrying important people or for a ceremonial purpose.
From auto- (automobile) + -cade (from cavalcade, meaning a procession). The suffix -cade was extracted from cavalcade and applied to auto in the early 20th century to describe motorized processions.
The famous presidential autocades—especially after JFK's assassination in Dallas in 1963—became crucial to security planning; they transformed a simple parade into a carefully choreographed protective formation.
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