Nothing like some mountain roads and three Porsches.
Considering that it's an island, and long road trips are therefore difficult to say the very least, Puerto Rico has quite a vibrant car culture. And as a demonstration of this, we give you the following video, of a Porsche Type 997 911 Carrera S chasing not one, but two examples of the hard-edged Type 997 911 GT3 RS through the mountains on the island. The GT3s are unmodified, but the camera Carrera has an upgraded intake and exhaust, as well as a chip tuning.
The video's poster felt we should know that the roads were covered in gravel, a result of heavy rain the night before.