This has been achieved through the use of ultra-light materials for the body, such as carbonfibre and a special high-strength aluminium alloy created through 3D-printing, which minimises waste and enables parts to be created with extreme precision.
The chassis is made from a composite of aluminium, carbon and steel, which is light yet strong enough to keep the Filante safe and stable on track.
Renault also saved weight by fitting the Filante with steer-by-wire and brake-by-wire technologies, which cut down on mechanical components in the car and add a new level of computer precision when braking and turning to further optimise efficiency. Both technologies are edging closer to use in production vehicles.
Elsewhere, the 19in wheels, normally a major source of “aerodynamic interference”, according to Renault, have been designed to minimise the impact on airflow.
These are shod with special Michelin tyres that are said to reduce energy losses from friction.
At the same time, the suspension arms are tucked in to improve airflow.
The Filante is also meant to be a pretty thing, said Sandeep Bhambra, Renault’s director of advanced design, with a look that “seeks to convey an impression of flow and lightness”.
