China's BYD on Monday started offering advanced autonomous driving features on most of its models including ones priced as low as $9,555, far undercutting competitors such as Tesla in a move analysts say is set to start a new price war.

BYD plans to offer an autopilot system in nearly all its cars, making autonomous driving affordable to all mainland Chinese customers as the world's largest electric-vehicle (EV) maker seeks a competitive edge in an escalating price war.

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.