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 opened a new front in China’s electric vehicle price war — adding advanced driver-assistance features across most of its lineup for no extra cost and sending its shares to a record.

Leapmotor , the Chinese partner of Stellantis , on Tuesday launched a new electric vehicle with smart driving technology priced under 150,000 yuan ($20,535), a day after BYD slashed the entry price for such smart EVs.