Have you guys heard of this?
Porsche 960 Bumped up to a Boxer Eight-Cylinder Engine - Top Speed
Flat-8 600+ hp engine.
The 911 Turbo already does well against the 458 and I'm sure the new Carrera GT successor, the 918, will do great against the Aventador and new Ferrari F70 or whatever its called.
Porsche does not need this, but it's nice to see them make it anyways.