World’s fastest bullet train, named CR450 hit the highest speed of 453 km per hour during pre-service testing on the Shanghai-Chongqing-Chengdu railway line in China. The train has been engineered for a maximum commercial speed of 400 km/h and a test speed of 450 km/h. It can accelerate from zero to 350 km/h in just 4 minutes and 40 seconds.