What is the name for a procession of cars that drives behind car?

There isn't a single, universally accepted term for a procession of cars driving behind another car. However, depending on the context, some possible terms include:

* Convoy: This is a general term for a group of vehicles traveling together for protection or for logistical reasons.

* Tailgating: While usually referring to driving too close to the car in front, it could be used in a broader sense for cars following another car closely.

* Motorcade: This term is usually used for a procession of cars accompanying a VIP or dignitary.

* Parade: While typically associated with walking groups, a parade can also refer to a procession of vehicles.

* Train: This is less common, but can be used to describe a string of vehicles following each other.

The best term depends on the specific situation and the intended meaning.