Yeah I'm not a fan of that (and I still think it's more about politics than anything else) but I think Apple really is doomed if all they can ever do is make phones/tablets/laptops. People don't seem to have a problem with Amazon, Alphabet and others getting in to all kinds of things but with Apple it seems to be stay in your lane and never go outside of it.
What is Apple's lane? Everything they've done over the last 15 years or so is about widening their lane, or creating new lanes.
As for your other two examples, both of those companies have been critiqued for their lack of focus. Google had to create a new parent company to get all those projects created by their monumental case of corporate ADD into separate lanes. It still looks like a big mess. Amazon grows their top line in leaps and bounds, but has trouble showing a profit, in part because so many of their products aren't commercially successful. Neither are good models for what Apple does or should do.
So yes Apple needs to push outwards from their current product line, just as they have always done, but these new products should be leveraged against their demonstrated competencies. On that score, the car just doesn't seem like the thing, unless they've come up with such a novel approach to transportation that nobody else has either thought of it or has the resources to do it. Nothing I'd rule out entirely but it makes my brain hurt just thinking about it.