IMSA GTP 101: Porsche's 963 Internal Combustion Engine
There's simply nothing like the engine in Porsche's 963. In fact, it's the only one of its kind in IMSA's new WeatherTech SportsCar Championship hybrid GTP class.
Take a look at the time-honored roots and the modern take on the motor code named '9RD' that Porsche Penske Motorsport intends to take to victory lane at the 12 Hours of Sebring and the 24 Hours of Le Mans.
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