China on Sunday unveiled an updated model of its high-speed bullet train which its manufacturer claims reached speeds of 450 kmph during the test runs, making it the world's fastest high-speed train.

China has showcased the CR450 prototype, a new model of high-speed train meant to travel at speeds of 400km/h (around 249 mph) with a peak speed of 450km/h (about 280 mph). China's unmatched position ...