Porsche has revealed a new one-off model called the Flachbau RS, a bespoke 911 GT2 RS built through its Sonderwunsch program. The car was shown at the Monterey event in 2026, according to Auto Express and other outlets covering the debut.
The Flachbau RS revives the classic "flatnose" or slantnose design, a styling cue from earlier Porsche 911 generations. Auto Express reports that the car is as striking as fans would expect, while Top Gear notes that its appearance is meant to echo the famous "Moby Dick" 935 race car from Porsche’s motorsport history.
The project is a collaboration between Porsche’s Sonderwunsch customization division and Manthey, the German tuning and racing firm known for its track-focused Porsche parts. Car Magazine describes the result as a joint effort between the two, presented as a highlight of the Monterey Car Week lineup.
PistonHeads frames the Flachbau RS as a modern resurrection of the slantnose 911, a body style that originally appeared in the 1980s. The new car takes that retro silhouette and applies it to the current 911 GT2 RS platform, which is already one of Porsche’s most powerful road cars. The exact performance figures or mechanical changes were not detailed in the available reporting.
The Flachbau RS is a single example, built for one customer, and is not expected to enter series production. Porsche has not said whether the design will influence future models, but the one-off shows how its Sonderwunsch program can reinterpret iconic styling for modern buyers.
Watch for further details on the Flachbau RS’s specifications and any public appearances beyond Monterey as Porsche releases more information.
