https://en.wikipedia.org/wiki/China_Railway_CR450AF

https://english.news.cn/20251021/da898197689943ccae2c9617a853fb85/c.html

The CR450 has begun pre-service trials on a high-speed line in China, with speeds up to 453 kilometers per hour.

The CR450 series is engineered for a commercial service speed of 400 km/h and is presently undergoing qualification trials on the high-speed rail linking Shanghai and Chengdu. It will log 600,000 trouble-free kilometers before it is cleared to carry passengers.

It can sprint from standstill to 350 km/h in just 4 minutes 40 seconds, and two trains have set a record by passing each other at a combined speed of 896 km/h.

Compared with its predecessor CR400, the CR450 features a longer, sleeker nose, a 20-centimeter lower roofline, and a 50-tonne weight reduction, thereby cutting aerodynamic drag by 22 percent.