
Red Bull Advanced Technologies, the high-performance engineering division of the Red Bull Technology Group, announced a partnership with Singer Vehicle Design, the world-renowned reference for highly customized restorations of air-cooled Porsche 911s.
The goal is to develop a strategy to significantly increase the torsional rigidity of the 964 Cabriolet and Targa models reinterpreted through Singer’s Classic Turbo services.
Porsche 911 Targa reinterpreted by Singer – Classic Turbo – presented with a carbon fiber body in Cassis Red MetallicThe process begins when the owner of a Porsche 911 from the 964 generation sends the car for a full restoration. The vehicle is completely disassembled: interior, exterior bodywork, and mechanical components are removed to expose the steel monocoque. This chassis undergoes a thorough inspection, cleaning, and preparation to ensure optimal conditions for the following phases.
At Singer’s request, Red Bull Advanced Technologies applied its world-class simulation and structural analysis capabilities. The 964 chassis was digitally modeled from scanned data and manual measurements. Finite Element Analysis (FEA) software was then used to calculate the torsional rigidity of the vehicle in different configurations, with and without the roof. The model was refined until the predicted values matched measurements obtained in physical tests.
With the correlated model, engineers identified the areas of the open structure that experience the most torsional stress through strain energy analysis. Based on this data, a set of 13 carbon fiber structures was designed to reinforce critical points of the chassis, preserving the original architecture of the Type 964 and meeting component integration requirements.

These reinforcement structures are bonded to the monocoque during the restoration process. As a result, the torsional rigidity of the assembly increases by 175%, bringing direct benefits in drivability, braking stability, and overall refinement. According to the companies, the driving experience of the convertible and Targa models is now comparable to that of the coupes, without compromising the authenticity of the original design.
Source and images: Singer Vehicle Design. This content was created with the help of AI and reviewed by the editorial team.
