Exactly 6 years ago, when I order my first Tesla, a Model S P85D, on Christmas Day, as an Apple consultant, I was so torn whether I should wait for the Apple iCar (name the rumor sites used) or the Model X. I am glad I leased, so I could wait to see what happened. The Apple Car didn't happen, I disliked the Falcon Wing Doors on the Model X, The Model 3 was not a hatchback, so, I ended my lease 13 months early to buy the wonderful Model S 90D that I have now driven over 100,000. The safety, performance and the infrastructure provoke me to stay with Tesla, in spite of, fit/finish issues, mediocre customer service and communications.
The only upside, Jonny Ive is no longer designing things at Apple. His extreme minimalist, form over function approach would likely have rounded corner rectangle tires, and would not have doors for passenger entry, because they ruin the design.
IMHO, I think cars are too complex in production for Apple to pursue a car. If they became competitive to Tesla, I would check them out.
The car market for self driving electrics will increase, but, car sales in general will decline over the coming decades as people embrace ride and car sharing.