The Porsche 911 GT3 is a higher performance version of the Porsche 911 sports car.  It is the latest in a line of high-performance models, beginning with the 1973 911 RS.  The GT3, named after the Fédération Internationale de l'Automobile (FIA) GT3 European Championship it was designed to compete in, has a 3.6-litre naturally-aspirated six-cylinder engine, based on the unit used in the Porsche 962 and Porsche 911 GT1 race cars.

As with earlier models, such as the Carrera RS 2.7 of 1973 and the Type 964 911 RS of 1991, Porsche offered an RS version of the 997 GT3.  In common with its predecessors, it provided a homologation model for use in a range of racing series.

Thanks to a close-ratio six-speed transmission with a single-mass flywheel, the engine revs up even more freely, thus enabling the 911 GT3 RS to sprint from zero to 100 km/h (62.1 mph) in 4.0 seconds, with a maximum speed of 310 km/h (193 mph).

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