You can't control the temperature in a car all the time. A car left outside in the south-west US will get very hot. Often up to 80 degrees C (170F). It's a greenhouse.
Likewise a car parked outside in Montreal in winter might reach -40 degrees C (-40F) inside.
Your electronics need to work through that entire temperature range, cope with repeatedly thermally cycling between extreme and room temperature and then keep doing it for more than 10 years.
Tesla's come by default with something called cabin overheat protection. The car will protect itself at something like 105F. It costs power of course, but I doubt many owners disable this feature.
Similarly if plugged in (which I do when I'm below -20F and not driving) it will heat thing to protect itself.
I spent a summer in Texas where my car would hit 185F if parked in the sun during the day. Light tan Corolla with tinted rear windows, so not even near optimal in terms of retaining heat.
I baked cookies on the dash one day. Not hot enough for caramelization though so the flavor was lacking.
It just usually sucks to pay a lot of money for a car that's so far behind all the cheap devices that I have.