(Motorsport-Total.com/Motor1) – The Porsche 935 was successful in the DRM and IMSA, and in 1979 one won the 24 Hours of Le Mans. The car with the extremely unusual nose was not only extremely stylish, but its success also sparked desires. Chief among them was the then TAG Group head Mansour Ojjeh, who financially supported numerous motorsport projects and commissioned a street-legal example as a special request.
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That’s how the ball got rolling. In 1983, a Porsche 935 Flachbau could be ordered regularly through the exclusive manufactory program. The shape probably looked so flat and cozy that factory mechanics gave it the nickname Moby Dick. There was much speculation when Porsche patented the model names “Flachbau” in May 2025. A prototype caused further excitement during its Nürburgring outing.
Now the secret is revealed: A wealthy customer has transformed his nearly new Porsche 911 GT2 RS (generation 991.2) from 2018 into a new street-legal Moby Dick.
The project took almost three years. It also brought together the in-house special request department, Style Porsche, and the suspension experts from Manthey. The car was to become a modern interpretation of the legendary 935 race car, without losing street approval in Europe. The drivetrain was left untouched. The well-known biturbo boxer with 515 kW (700 hp) still works in the rear.
New aerodynamics and tiny headlights
Visually, the “Flachbau RS” hardly has anything in common with the base GT2 RS anymore. The front fenders sit significantly lower and vent the wheel arches via distinctive slats. The classic round headlights were removed. Instead, the team installed custom-made, extremely narrow LED units
Low and high beams each measure just under four centimeters in height, and the daytime running lights come in at under two centimeters. The car is painted in “Grand Prix White,” combined with exposed U-shaped carbon on the front hood. The color scheme is a direct homage to the Martini design of the original 935/78.
Photo gallery: Porsche 911 GT2 RS “Flachbau” (2026)
The rear was also heavily worked on. The new wing with S-shaped mounts is based on the 911 GT3 R race car but sits about five centimeters higher here. The massive spoiler can be manually adjusted in three stages. In the most aggressive position, the component generates 554 kilograms of downforce on the rear axle at the top speed of around 340 km/h. Carbon aero discs on the rear wheels and a modified Manthey underbody including diffuser complete the aerodynamic package.
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Radical diet in the interior
Although a 911 GT2 RS with Weissach package is already lightweight from the factory, the special request team shaved off another 32 kilograms from the unique car. The solution is not only Spartan austerity but might also sound like a delight to some. The infotainment system was simply removed entirely and replaced with a leather compartment. Music comes from the rear, so the audio system learned to fly. Insulation mats and carpets? Overrated!
Behind the carbon bucket seats, the owner now looks at bare, white-painted metal. Even the newly laid wiring harness is exposed and held together only by a protective sleeve. Unneeded individual cables were meticulously removed. Warning triangle and tow hook were moved from fixed body points to a removable box for weight reasons.
That this is not just a show car is proven by the development effort. Porsche ran the wing assembly through hydropulse test benches and simulated a load of 150,000 kilometers of customer use. Test driver Lars Kern also completed 50 laps alone on the Nürburgring Nordschleife to approve the aerodynamic concept. How nice it is when the aforementioned outings from over a year ago can be clarified.
What the conversion to the “Flachbau RS” cost Porsche naturally keeps to itself. However, we can assure you (even though we are not an insurance company) that with the described effort of a three-year transformation into an absolute one-off, many might feel a bit dizzy at the amount.
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