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The widowmaker is back, and spies say it's a symphony on wheels. The new-generation Porsche GT2, spotted on the N rburgring recently, is the last to arrive (and most insane) of the 997-generation 911s. The rear-drive, weight-reducted beast β€” carbon fiber et. al. β€” is said to produce in the neighborhood of 500 hp. Who needs tuning shops when all that craziness rolls right out of the new Porsche Motorsports center in Weissach. Why, indeed.

SPY PHOTOS: More Porsche 911 GT2 [World Car Fans]

Spy Photos: Porsche GT2 [internal]