BYD made that statement in a product announcement to investors, and they seem to care about their reputation and not getting sued. It’s certainly possible that they’ll struggle to hit it but they started as a battery manufacturer (they were even a supplier for Tesla) and control the whole design including custom charging chips and battery cells so if there’s a company which is going to hit this milestone first it would look like them.

https://electrek.co/2025/03/17/byd-confirms-1000v-super-e-pl...