The Space-Frame Chassis
Precision Structure. Proven Strength. Pure Performance.
At Carbon 40R, we believe a chassis must do more than sit beneath the body — it must define performance. That’s why our hand-built space-frame chassis is modeled on the same rigorous principles found in high-performance race cars. A properly designed space frame uses triangulated members so that loads travel through struts in pure tension or compression, rather than subjecting them to bending or torsion.
Starting with a lightweight, high-grade tubular steel, we reference the suspension hard-points of the Chevrolet C5 Corvette, preserving its proven geometry—particularly the zero scrub radius at the front—to optimize response, steering feel, and stability under load. Unlike the factory C5 configuration, however, our design elects to omit anti-dive geometry to maintain consistent handling and ride behavior under braking and corner loading with the mid engine configuration.
We analyze each node, each junction, and each tube path using finite-element analysis (FEA) to ensure structural integrity under real-world loads. Research into tubular chassis design demonstrates how FEA can optimize material thickness, tube layout, and cross-member placement to deliver exceptional torsional rigidity without excess weight.
In our build process:
We define suspension hard-points, engine mounts, and occupant space early, ensuring the chassis geometry supports both performance and ergonomics.
We apply virtual torsional, bending, and impact loads in the digital model, then iterate member sizing and bracing placement until the targets are met.
Only then do we hand-fabricate the frame, weld it with precision, and match it with our carbon-fiber body. Every tube, every weld, every fixture is aligned to the virtual model.
By integrating racing structural theory with artisan build quality, Carbon 40R’s chassis provides a foundation that’s as rigid, responsive and safe as it is beautiful. This is structure you can feel, built with purpose.
