BYD electric supercar has crossed the speed limit of 500 km/h The "Yangwang U9 Extreme" electric supercar made by China's BYD has set a new speed record for production cars by registering a speed of 503.17 km/h. This car with a power of 2977 horsepower moves about 140 meters per second. According to Sputnik, the speed test was conducted on a closed road in Abu Dhabi and only 30 units of this model will be produced.