Trailers

Trailers are interactive towing objects in GTA 5. Like the vehicles, they can spawn, but not movable unless moved by something. They are also unusable (thanks to developer's lack of logic) and did not cost a price. The trailers are a good thing to play with, besides gunning or driving here and there. These trailers, however, made the player vulnerable to douchebags with a RPG on them.

Here's the trailers list: