"The result is the streamlined Renault Filante demo car, which drove 626 miles (1,008 km) in under 10 hours, averaging a speed of over 63 mph (102 km/h). When it completed its record run, it still had 11% left in its battery, which Renault says means it could have achieved the same range at an even higher speed, 75 mph (120 km/h), or it could have gone even further at the same speed, almost reaching 680 miles (1,100 km)."
"The Filante recorded an average electricity consumption of just 7.8 kWh/100 km, which is just shy of 8 miles/kWh. That's considerably better than even the most efficient of today's production EVs, like the Mercedes-Benz CLA, Tesla Model 3 or the Lucid Air, which can't do much better than 5 miles/kWh even with their 800-volt architecture. The secret is a combination of its low-drag design, low weight of just 2,200 pounds (1,000 kg), and the use of very narrow tires."
Renault built the Filante test EV as a laboratory on wheels to explore maximum range using contemporary technology and an 87-kilowatt-hour battery similar to midsize models. The Filante drove 626 miles (1,008 km) in under 10 hours, averaging over 63 mph (102 km/h) and finishing with 11% battery remaining. With the leftover charge, the car could have maintained 75 mph (120 km/h) for the same range or nearly reached 680 miles (1,100 km) at the recorded speed. It recorded average consumption of 7.8 kWh/100 km, roughly 8 miles per kWh, outperforming current production efficiencies near 5 miles per kWh. Key factors included a low-drag body, 2,200-pound curb weight, very narrow tires, power-saving steer-by-wire and brake-by-wire systems, and bespoke Michelin tires. The production Scenic E-Tech with the same battery is WLTP-rated around 380 miles (610 km), with about a 30% drop under sustained high-speed driving.
Read at insideevs.com
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