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In an effort to ground the project thesis in realistic data, Simulation CFD (Autodesk) was used to produce iso form shape that exceeded known aerodynamic performance of winning solar and gravity racer designs without compromising driver ergonomics.
From gained CFD research, ideal form was to narrow the body shape rather than a more conventional flat design. To achieve this, the driver's feet are arranged in bunk-bed fashion, one above the other.
Quick ideation sketch to establish proportions.
A napkin sketch is compared with the final 3D model of the EB 9.81 concept gravity racer.
Bugatti EB 9.81

A concept Bugatti entry into an XGR gravity racer like series. But in future, this new series would include energy recovery as a key competitive advantage.

Stephan Park
Industrial Designer, Interface Designer Los Angeles, CA