The car is a research vehicle of a local university, where they fitted custom motors for controlling steering. The Redmi Note 9 Pro phone is communicating via a wireless CAN bus interface to the Suzuki Alto car.
This is really more a proof of concept than a serious commercial solution, but the code is open source (link in the article), so one can see how it works... and it does actually drive the car.
See
Hacking my android phone to drive my car#
technology #
selfdriving #
opensource 
This blog post is an overview journey of me and friends making an affordable and safe self driving car system.
