So far the costs of maintaining my Toyota have been relatively high, partly because the parts are much more expensive than vehicles like basic Ford trucks. (But that was also true for the Honda CRV I used to own.) And partly because they make it hard for the owner to do even basic maintenance - e.g., it was very difficult to replace the air filter in the glove compartment, and replacing a sun visor is pretty complicated too. (Though the need for that is my fault - since I’ve been unable to find an adhesive that sticks to the textured dashboard for long, and it is illegal in Maryland to cover almost any part of the windshield, I hung my GPS from the visor, which created an excess weight load.)
The extra wheel rim to add a full size spare tire would have been close to $600 new - though I found a used one.
Part of the problem is that I have yet to find a reasonably priced honest repair shop who works on Toyotas in my geographic area (suburban MD). I found one through Yelp in upstate NY, which I sometimes visit, and had them do routine service, and have been very pleased with them. I will have them work on the AC next visit.
I’m sure Tesla’s glass roofs help create superior visibility - a huge plus. But they aren’t in the same price range, and my desire to take long drives in rural areas with no unusual brand mechanics or parts made them impractical anyway.
But that’s not what my questions were about. I was only trying to understand the one issue, one important to me because I often have things in my vehicle that can’t get very hot.