http://www.techradar.com/news/apple-has-been-busy-upgrading-its-self-driving-car-tech

Apple hasn't said much publicly about its foray into autonomous driving technology, but it's hard to keep a self-driving car hidden on the road - and a MacRumors reader has spotted a significantly upgraded setup doing the rounds in sunny California on top of a Lexus SUV.

If you're new to the saga of Apple's self-driving cars, the general consensus is that Apple was working on a vehicle of its own before scrapping that idea last year. Now Apple is focusing on the technology and the AI that goes into making cars autonomous, rather than making an actual motor.