BYD denies report of driver-assist system swap and discontinuation

The denial matters less for the rumor itself than for what BYD chose to defend: full-stack in-house development. That framing puts the company's software autonomy, not any single system tier, at the center of its positioning against suppliers like Horizon Robotics. The legal threat signals BYD treats driver-assist speculation as reputationally material, which is notable as competition over assisted-driving capability intensifies. Whether the in-house approach holds up under iterative updates, and whether supplier-rumor cycles keep recurring, are the open questions worth watching.