The Porsche 911 GT3 has 530 horsepower, 505 lb-ft of torque and is capable of going 204 mph. And it's not enough. Not for TechArt, at least. You know TechArt. They take Porsches that already push the limits of performance and go all Chuck Yeager on them, probing for new and more crazy limits. Generally they find them, then they package them up and offer them to the moneyed public. Case in point: the new GT Street RS. What begins as a "normal" GT2 turns into a 700-horsepower, 634 lb-ft (860 Nm) warp-enabled street predator when the TechArt people are through messing with it.