Maybe in that case Apple should invest in Tesla. There were serious reports a year or more ago that Apple was considering buying Tesla or at least getting an ownership stake, but backed out. Maybe Apple should reconsider, assuming that Musk would be interested (which is by no means a given). In any event, building an affordable and practical electric car is an exciting and groundrbreaking consumer product development project. The Apple Watch, not so much. Admittedly, a car is out of Apple's comfort zone, but I still think that Apple could bring things to the development table in the event of a partnership, including Cook's expertise in operational efficiencies.
When there's an eel in the lake that's as long as a snake that's a moray.