What's needed for a GTA Online skyscraper battle royale, like the one above, is only a few friends (and their cars), a cargo helicopter, and the biggest building in the game.
The fun, shared by YouTuber Kyoto-Moto, starts around the 3:00 mark in the video below. And yes, they fight until only one car remains:
GTA Online (GP Mafia Crew) - 13 Car Skyscraper Battle Royale [YouTube]
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