By Leftlane Staff
Monday, Jul 10th, 2006 @ 10:00 am

German tuner 9ff has put together a twin-turbo 2007 Porsche 911 Cabriolet with 650 horsepower. While Porsche so far has only announced a coupe version of its 2007 911 Turbo, 9ff is already building a convertible version with 170 more horsepower. Based on the all-wheel-drive 997 Carrera 4, the car will hit 62 mph in well under four seconds and 124 mph in less than 10 seconds. Gallery after the jump…

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