911 fever has broken out in Geneva-Both the new Turbo and new GT3 models are at the Swiss show. The GT3 is the most powerful non-turbo 911 in history, with 415 all-natural ponies, good enough for a 0-60 mph time of 4.1 seconds.
When a small, independent automaker like Porsche has two world-premieres at one auto show, it's big news. It's even bigger news when the two cars are the downright nutty 480-hp 911 Turbo and this model, the 911 GT3. With 415 horsepower, the GT3 is the most powerful non-turbo 911 road car in Porsche's history. The car starts with the same high-revving 3.6-liter flat-six as the last GT3, which was derived from the 996-series 911. For the 997-based GT3, Porsche adds a larger throttle valve (82 millimeters in diameter, up from 76 millimeters), new cylinder heads, and a reconfigured exhaust system. Changes have also been made to the car's six-speed transmission, including shorter ratios for the top five gears and a shifter with even shorter throws. All of these engine and transmission modifications, Porsche claims, results in a 0-to-60-mph time of 4.1 seconds, a 0-to-100-mph time of 8.7 seconds, and a top speed of 193 mph.
Photo Gallery: 2007 Porsche 911 997 GT3 - Automobile Magazine
Source: http://www.automobilemag.com/auto_shows/geneva_2006/0603_porsche_911_gt3/index.html
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