That's exactly my point. I've had several cars, at least some of which I assume have "well designed auto HVAC systems" by your definition: Audi, Porsche, Tesla, and Rivian. A typical example is that I'll get in the car and I'm freezing. The temp is set to 72 or whatever from the last time I...
That's still a lot of manual control to work around the limitations of what the car can do automatically.
There's really no downside to having readily available manual controls. The car is such a small volume of air that once you manually set a temperature and airspeed that are comfortable...
The nature of cars, however, is that you're often getting in and out of them in very hot or cold conditions, so that all you can think about when you get in the car is heating up or cooling off as quickly as possible. That can require a lot of fiddling with the climate controls to accomplish --...
I hate auto modes because I want to be in control of both air temperature and velocity. I don't want the car deciding whether to use a trickle of super-heated air versus a strong stream of slightly warm air, for example. Plus, as I said, the car doesn't really know if the sun is beating down...
One thing that drives me nuts about most modern cars is the idea that you can simply dial in a number for the temperature and it can automatically keep you comfortable. I'm constantly having to adjust the temperature and fan speed because the car usually has a very poor sense of how hot or cold...
I forget which video it was, but an engineer from Rivian said that the max speed is a function of the motors running at max RPM and not any kind of artificial restriction.
Aren't there a hundred other things that could fail and leave you stranded for which you can't carry a spare? Plenty of things to disturb your peace of mind if you're so inclined :)
One reason is that it's important to have a display that's visible to people outside so they don't think your pet is in danger and try to break into the car to save them.
Also many cars that have the ability to keep the a/c on only allow it for a limited time. You also want the ability to...
There's a new Out of Spec Reviews video out today specifically on pet mode (in general, not just for Rivian). They mention that many automakers (particularly German ones) won't add it because they are worried about legal liability. So IMHO it's understandable that Rivian wants to be extra...