"Even greater performance and a Flachbau look, combined with a rear wing à la 911 GT3 R rennsport, please." These were the specifications set by a Porsche enthusiast who had his like-new 911 GT2 RS transformed into a factory one-off by the Sonderwunsch department. In collaboration with Manthey, a unique, road-legal collector's item was created. Painted in Grand Prix White and equipped with newly shaped wheel arches and a striking, U-shaped contrasting graphic on the bonnet, the front end of the car pays homage to the legendary 935/78 Le Mans racing car nicknamed ‘Moby Dick’.
The Flachbau (otherwise known as slantnose) body style and the Sonderwunsch programme have been closely linked at Porsche for decades: in the 1980s, the sports car manufacturer offered a spectacular modified version of the 911 Turbo (Type 930) with redesigned front wings and pop-up headlights. The design was based on the legendary Porsche 935, which dominated endurance races for years. Between 1982 and 1989, 948 examples of this modified version were sold. Even with later conversions taken into account, Flachbau models are still among the rarest variants of the 911 today.
Curiosity and intrigue in the sports car scene and the media was certainly piqued when it emerged that Porsche had registered the model designations ‘Flachbau’ and ‘Flachbau RS’ with the European Patent Office in May 2025. Now, the brand is revealing the secret: the reason for this patent filing was this elaborate transformation of a like-new 911 GT2 RS (Type 991.2) with Weissach Package from 2018.
A multidisciplinary team – comprising experts from Sonderwunsch department, Style Porsche, and development engineers from Weissach, Porsche Motorsport and Manthey – worked on the project for almost three years. "Converting the car to a slantnose model proved to be very challenging, even though we left the drive unchanged, in agreement with the customer,” explains Alexander Fabig, Vice President Product Offering & Individualisation at Porsche. “Our aim was to reinterpret the iconic look of the 935 without compromising on safety, technology or road legality. Thanks to thorough lightweight measures, this one-off car now weighs 31,6 kg less than before. That may sound unspectacular at first, but the 911 GT2 RS with Weissach Package is a sports model that is already uncompromisingly optimised in terms of weight reduction."
In the image: Porsche 935 (2019), Porsche 935/78 'Moby Dick', Porsche Flachbau RS (991.2), 2026, Porsche AG
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20 August 2026
