So I see the dream here, but there's just not enough surface area for a meaningful amount of energy generation (in car terms). I really wish more manufacturers

So I see the dream here, but there's just not enough surface area for a meaningful amount of energy generation (in car terms). I really wish more manufacturers would use solar panels to spin up an A/C compressor or a small heater to maintain more pleasant temps inside the cabin for when you get into the car. I remember seeing it done as a concept a few years back, but I haven't seen one in the wild yet. Anyone know if a manufacturer is doing this?