Chinese electric vehicle giant BYD this week began offering advanced autonomous driving features on most of its models, including ones priced as low as $9,555, a move likely to start a new price war in a hyper-competitive market.

BYD unveiled a massive expansion of its "Gods Eye" intelligent driving system on Monday as the car giant looks to win the brutal EV battle.

China EV maker BYD plans to install its self-driving technology on most cars without extra cost, and even cheaper models. Analysts say this could be another hurdle for Tesla.