Apple’s CEO has confirmed that the company is working on self-driving cars, but not a complete autonomous vehicle, describing that as “the mother of all AI projects”. It comes in the same week that Alphabet’s Waymo confirmed that it is abandoning its Firefly two-seater cars, to focus on more conventional designs. CEO Tim Cook said that Apple is developing an “autonomous system,” adding that it is probably one of the most difficult AI projects to work on. Cook said that autonomy is something that is incredibly exciting for Apple, but that “we’ll see where it takes us. We’re not really saying from a product point of view what we will do, but we are being straightforward that it is a…