Beijing: The world's fastest bullet train has started pre-service trials on a high-speed rail line in China, reaching a top speed of 453 km/h (nearly 281 mph) in testing.

According to Anadolu Agency, the CR450 train is designed to achieve a maximum test speed of 450 km/h (nearly 280 mph) and a commercial service speed of 400 km/h (nearly 248 mph). It is currently undergoing qualification trials on the high-speed route connecting Shanghai in the east to Chengdu in the western part of the country.

The train is capable of accelerating from zero to 350 km/h (nearly 217 mph) in just 4 minutes and 40 seconds. Notably, two CR450 trains recently set a record by passing each other at a combined speed of 896 km/h.

In design advancements, the CR450 boasts a more streamlined appearance than its predecessor, the CR400, with a longer nose, a 20-centimeter lower roofline, and a 50-ton weight reduction. This leads to a 22% reduction in aerodynamic drag, enhancing its efficiency.

Currently, the CR400 Fuxing trains operate at a top speed of 350 km/h. The CR450 is set to complete 600,000 kilometers (nearly 373,000 miles) of trial runs without incident before entering passenger service.