Early 2025 Renault gave its engineers a task: to develop an electric vehicle (EV) that could travel 1000 km without recharging while traveling at realistic highway speeds of over 100 km/h, well above typical hypermiling speeds.
The Filante record 2025 Concept achieved this feat on December 18 at the UTAC test track about two hours southeast of Casablanca, Morocco, when it covered 1008 km in just under 10 hours.
The average driving speed was over 110 km/h as the driving time included technical stops and two driver changes. The vehicle was piloted by Constance Léraud-Reyser, a chassis engineer at Alpine; Laurent Hurgon, test rider for Alpine; and Arthur Ferriere, a chassis tuning engineer at Alpine.
While driving, the car reached an average speed of 102 km/h and consumed 7.8 kWh/100 km. At the end of its journey, the car still had 11 percent charge left, which would be enough to drive another 120 kilometers at a constant speed of 100 km/h.
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To achieve its goal, Renault could have simply built a car with a huge battery and called it a day, but the company limited itself to using a battery pack with the same capacity (87 kWh) as the long-range versions of the Scenic E-Tech.
The 87kWh variant of the Scenic E-Tech has a 160kW/300Nm motor driving the front wheels and a WLTP range of 625km. This is well below the 1000 km target, so the company had to optimize its record-breaking vehicle in terms of weight and aerodynamic efficiency.
According to Renault, the design of the Filante Record 2025’s bodywork pays homage to the 40CV, a luxury sedan from 1925, and the Étoile Filante, a gas turbine-powered car from 1954 designed to set a world land speed record at the Bonneville Salt Flats in Utah.
After many hours of wind tunnel testing, the team decided to detach the wheels from the body to improve airflow.
Thanks to the extensive use of carbon fiber and aluminum alloys as well as 3D printed Scalmalloy components, the weight has been reduced to around 1000 kg. The all-electric steer-by-wire and brake-by-wire systems also minimize weight and enable better packaging.
The single-seat cockpit is naturally spartan, but features a spherical display in the center of the steering mechanism that shows speed, remaining time, efficiency and other important details.
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