BYD stock briefly hit a record high following the introduction of a new smart-driving system which will be available in most of its models.

BYD shares hit a record high in Hong Kong on Tuesday, rising 4% amid self-driving-tech integration.BYD said it would integrate self-driving features across 21 vehicles, using DeepSeek AI in some."BYD has again expanded the gap on technology between itself and majority of OEMs,

Advanced smart driving will become a standard safety feature similar to seatbelts and air bags, BYD's founder and chairman Wang Chuanfu said.