The 997-generation GT3 RS 4.0 holds a revered place in Porsche’s Rennsport hierarchy, much like the iconic 1973 911 Carrera RS 2.7. It was the final 911 GT3 to feature the legendary Mezger engine, paired exclusively with a six-speed manual gearbox. Named after Porsche engineer Hans Mezger, this engine is among the most celebrated powerplants in the brand’s history, having powered the 930 Turbo as well as legendary race cars such as the 934, 935, 956, 962, and GT1.
With the introduction of the 991-generation GT3 RS, Porsche transitioned to the 9A1 engine and made the PDK transmission standard, eliminating both the Mezger unit and the manual gearbox. The six-speed manual in the 997 GT3 RS 4.0, known for its precise, bolt-action feel, is a favorite among purists who prefer the engagement it offers over the PDK’s rapid shifts.
The car’s naturally aspirated 4.0L flat-six produces 500 horsepower, an increase over the 3.8L version due to a longer-stroke 80.4mm crankshaft borrowed from the 997 RS race car. Titanium connecting rods and front dive planes, also sourced from the RSR, contribute to its race-bred pedigree.
One of only 600 examples built, this 2011 Porsche 911 GT3 RS 4.0, listed on Bring a Trailer, has just 3,926 original miles. It sports a striking Carrara White exterior with silver and red RS graphics, complemented by a black leather and red Alcantara interior. The aggressive styling is defined by a low stance, wide track, and full-race aerodynamics, including a large rear wing set at a 9-degree angle. Alongside the first front dive planes ever used on a production Porsche, these elements generate 426 pounds of downforce at a top speed of 193 MPH.
This U.S.-spec example—one of only 141—is equipped with the Sport Chrono and Sound Plus packages, a modified exhaust, a front-axle lift system, a limited-slip differential, carbon-fiber-backed bucket seats, and 19-inch black center-lock wheels.
Source: Bring A Trailer
